What is the flow of electric charge called?
a) Current
b) Voltage
c) Resistance
d) Capacitance
Answer: a) Current
What is the SI unit of electric current?
a) Volt
b) Watt
c) Ampere
d) Ohm
Answer: c) Ampere
What is the relationship between current, voltage, and resistance in an electrical circuit?
a) Ohm’s law
b) Kirchhoff’s law
c) Faraday’s law
d) Gauss’s law
Answer: a) Ohm’s law
Which component in an electrical circuit stores and releases electrical energy?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: b) Capacitor
Which material is commonly used as a conductor in electrical wires?
a) Plastic
b) Rubber
c) Copper
d) Glass
Answer: c) Copper
What is the term for a path that allows electric current to flow?
a) Circuit
b) Switch
c) Fuse
d) Battery
Answer: a) Circuit
What is the device used to measure electric current in a circuit?
a) Voltmeter
b) Ammeter
c) Multimeter
d) Oscilloscope
Answer: b) Ammeter
What is the term for a material that does not allow electric current to flow easily?
a) Conductor
b) Resistor
c) Insulator
d) Capacitor
Answer: c) Insulator
Which component is used to control the flow of current in an electrical circuit?
a) Resistor
b) Capacitor
c) Diode
d) Switch
Answer: d) Switch
What is the potential difference that causes electric charges to flow in a circuit?
a) Current
b) Resistance
c) Voltage
d) Power
Answer: c) Voltage
What is the SI unit of electric potential?
a) Ampere
b) Volt
c) Ohm
d) Watt
Answer: b) Volt
Which type of circuit has only one path for current to flow?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: a) Series circuit
What is the resistance of a circuit with a voltage of 12 volts and a current of 2 amperes?
a) 6 ohms
b) 8 ohms
c) 10 ohms
d) 24 ohms
Answer: a) 6 ohms
What happens to the resistance in a wire if its length is doubled while keeping its cross-sectional area constant?
a) Doubles
b) Halves
c) Quadruples
d) Remains the same
Answer: a) Doubles
What is the term for a circuit that is not complete and does not allow current to flow?
a) Open circuit
b) Closed circuit
c) Short circuit
d) Grounded circuit
Answer: a) Open circuit
What is the device used to protect an electrical circuit from excessive current?
a) Fuse
b) Switch
c) Resistor
d) Capacitor
Answer: a) Fuse
What is the relationship between power, voltage, and current in an electrical circuit?
a) Ohm’s law
b) Watt’s law
c) Kirchhoff’s law
d) Faraday’s law
Answer: b) Watt’s law
Which component is used to increase or decrease voltage in an electrical circuit?
a) Resistor
b) Capacitor
c) Transformer
d) Diode
Answer: c) Transformer
What is the term for the opposition to the flow of electric current in a circuit?
a) Voltage
b) Current
c) Resistance
d) Conductance
Answer: c) Resistance
Which type of circuit has multiple paths for current to flow?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: b) Parallel circuit
What is the term for a circuit that is complete and allows current to flow?
a) Open circuit
b) Closed circuit
c) Short circuit
d) Grounded circuit
Answer: b) Closed circuit
Which component in an electrical circuit restricts the flow of current?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: a) Resistor
What is the device used to measure voltage in a circuit?
a) Voltmeter
b) Ammeter
c) Multimeter
d) Oscilloscope
Answer: a) Voltmeter
What is the term for the rate at which electric energy is transferred in a circuit?
a) Current
b) Resistance
c) Voltage
d) Power
Answer: d) Power
Which material is commonly used as an insulator in electrical wires?
a) Copper
b) Aluminum
c) Rubber
d) Glass
Answer: c) Rubber
What is the term for a wire that connects an electrical device to the ground?
a) Live wire
b) Neutral wire
c) Ground wire
d) Earth wire
Answer: c) Ground wire
Which device is used to measure the electrical resistance of a component?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: c) Ohmmeter
What is the term for the flow of electric charge in one direction only?
a) Direct current
b) Alternating current
c) Electric field
d) Magnetic field
Answer: a) Direct current
Which component is used to store and release electrical energy in an electrical circuit?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: b) Capacitor
What is the term for a material that allows electric current to flow easily?
a) Conductor
b) Resistor
c) Insulator
d) Capacitor
Answer: a) Conductor
Which type of current frequently changes its direction?
a) Direct current
b) Alternating current
c) Electric current
d) Magnetic current
Answer: b) Alternating current
What is the device used to measure electrical resistance in a circuit?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: c) Ohmmeter
What is the term for the ratio of voltage to current in an electrical circuit?
a) Resistance
b) Conductance
c) Capacitance
d) Inductance
Answer: a) Resistance
Which component in an electrical circuit stores electrical energy in a magnetic field?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: c) Inductor
What is the term for a circuit that has multiple branches for current to flow?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: c) Complex circuit
Which material is commonly used as a conductor in overhead power lines?
a) Aluminum
b) Copper
c) Steel
d) Silver
Answer: a) Aluminum
What is the device used to measure electrical power in a circuit?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: d) Wattmeter
What is the term for a circuit that provides an alternate path for current to flow?
a) Open circuit
b) Closed circuit
c) Short circuit
d) Grounded circuit
Answer: c) Short circuit
What is the rate at which electric charge flows in a circuit called?
a) Voltage
b) Current
c) Resistance
d) Conductance
Answer: b) Current
Which type of circuit has a single path for current to flow and shares the same current?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: a) Series circuit
What is the term for the opposition to the flow of electric current in a circuit?
a) Voltage
b) Current
c) Resistance
d) Conductance
Answer: c) Resistance
Which type of current changes its direction periodically?
a) Direct current
b) Alternating current
c) Electric current
d) Magnetic current
Answer: b) Alternating current
What is the device used to measure electrical current in a circuit?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: b) Ammeter
What is the term for a material that has a high resistance to the flow of electric current?
a) Conductor
b) Resistor
c) Insulator
d) Capacitor
Answer: b) Resistor
Which component is used to convert electrical energy into light?
a) Resistor
b) Capacitor
c) Inductor
d) Light-emitting diode (LED)
Answer: d) Light-emitting diode (LED)
What is the potential difference between two points in a circuit called?
a) Current
b) Resistance
c) Voltage
d) Power
Answer: c) Voltage
Which type of circuit has multiple paths for current to flow and shares the same voltage?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: b) Parallel circuit
What is the term for the flow of electric charge that periodically changes direction?
a) Direct current
b) Alternating current
c) Electric field
d) Magnetic field
Answer: b) Alternating current
Which device is used to protect an electrical circuit from excess voltage?
a) Fuse
b) Switch
c) Resistor
d) Capacitor
Answer: a) Fuse
What is the term for the electrical potential difference between two points in a circuit that is not connected to a power source?
a) Voltage
b) Current
c) Resistance
d) Potential difference
Answer: d) Potential difference
Which component is used to store electrical energy in a magnetic field?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: c) Inductor
What is the device used to measure electric potential difference between two points in a circuit?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter
Answer: a) Voltmeter
What is the term for the ratio of power output to power input in an electrical circuit?
a) Efficiency
b) Conductance
c) Capacitance
d) Inductance
Answer: a) Efficiency
Which component in an electrical circuit allows current to flow in only one direction?
a) Resistor
b) Capacitor
c) Diode
d) Transformer
Answer: c) Diode
What is the term for the opposition to the flow of electric current in a circuit?
a) Voltage
b) Current
c) Resistance
d) Conductance
Answer: c) Resistance
Which type of circuit has a break or gap that interrupts the flow of current?
a) Series circuit
b) Parallel circuit
c) Complex circuit
d) Open circuit
Answer: d) Open circuit
What is the term for the electrical pressure or force that causes current to flow in a circuit?
a) Current
b) Resistance
c) Voltage
d) Power
Answer: c) Voltage
Which component is used to store electrical energy in an electric field?
a) Resistor
b) Capacitor
c) Inductor
d) Diode
Answer: b) Capacitor
What is the term for a device that converts mechanical energy into electrical energy?
a) Motor
b) Generator
c) Transformer
d) Battery
Answer: b) Generator
What is the term for the flow of electric charge that occurs in one direction only?
a) Direct current
b) Alternating current
c) Electric field
d) Magnetic field
Answer: a) Direct current
