What is the symbol for a battery in an electrical circuit.
a. B
b. C
c. V
d. E
Answer: d. E
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What is the difference between power and energy in an electrical circuit.
a. Power is the rate at which energy is used, while energy is the amount of work done over time.
b. Power is the amount of work done over time, while energy is the rate at which work is done.
c. Power and energy are the same thing.
d. Power is the amount of work done in a circuit, while energy is the voltage applied to the circuit.
Answer: a. Power is the rate at which energy is used, while energy is the amount of work done over time.
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What is the difference between a series circuit and a parallel circuit.
a. In a series circuit, the components are connected one after another, while in a parallel circuit, the components are connected side by side.
b. In a series circuit, the components are connected side by side, while in a parallel circuit, the components are connected one after another.
c. In a series circuit, the voltage across each component is the same, while in a parallel circuit, the current through each component is the same.
d. In a series circuit, the current through each component is the same, while in a parallel circuit, the voltage across each component is the same.
Answer: a. In a series circuit, the components are connected one after another, while in a parallel circuit, the components are connected side by side
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What is the formula for calculating resistance in an electrical circuit.
a. R = V/I
b. R = I/V
c. R = P/I^2
d. R = V^2/P
Answer: a. R = V/I
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What is the symbol for a resistor in an electrical circuit.
a. R
b. C
c. L
d. D
Answer: a. R
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What is the purpose of an inductor in an electrical circuit.
a. To store electrical charge
b. To amplify electrical signals
c. To regulate voltage
d. To resist changes in current flow
Answer: d. To resist changes in current flow
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What is the basic unit of capacitance.
a. Volt
b. Ampere
c. Ohm
d. Farad
Answer: d. Farad
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What is the relationship between voltage, current, and resistance in an electrical circuit.
a. V = IR
b. I = VR
c. R = VI
d. All of the above
Answer: a. V = IR
What is the purpose of a fuse in an electrical circuit.
a. To increase the voltage
b. To decrease the current
c. To regulate the frequency
d. To protect against overcurrent
Answer: d. To protect against overcurrent
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What is the difference between alternating current (AC) and direct current (DC).
a. AC flows in one direction while DC flows in both directions
b. AC changes direction periodically while DC flows in one direction only
c. AC flows in both directions while DC flows in one direction only
d. AC and DC are the same thing
Answer: b. AC changes direction periodically while DC flows in one direction only
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