Quiz on Electric Circuits, Voltage, Ohm's Law, and Power
Question 1:
A current of 60 mA flows through a wire for 1 minute,
Calculate the quantity of charge moved by the current during this time.
Question 2:
A battery is used to ..................
- not to maintain a potential difference.
- maintain a potential difference.
- maintain a potential velocity.
- keep the mass the same.
Question 3:
Assume a resistor R is connected across a battery of negligible internal resistance.
If the resistance of R is halved, the current in R would be..................
- halfed.
- doubled.
- zero.
- the same as before.
Question 4:
Let's consider a 9-V battery in a simple circuit generating a current of 2A through the circuit.
Calculate the power being delivered by the battery.
- 0 watt
- 9 watts
- 8 watts
- 18 watts
Question 5:
A per the circuit, which device is used to measure the electric current in the circuit?
Question 6:
Assume that a student would like to measure the voltage across one of the resistors in the circuit shown above (question 5),
the student would connect a voltmeter ..........................the resistor.
- in parallel with
- in perpendicular with
- opposite to
- in any position with
Question 7:
The resistance of a circuit element is a measure of ................
- the amount of work that an electron can perform.
- the ratio of the voltage difference between element ends to the current in the element.
- energy
- power
Question 8:
Consider a circuit where the voltage drop across a resistor is 8.0 V for a current of 2.0 A in the resistor.
Calculate the current that will generate a voltage drop of 4.0 V across the resistor.
Question 9:
Ohm's law tells us that the amount of current generated in a circuit is...............................
- directly proportional to resistance.
- directly proportional to voltage.
- directly proportional to current.
- inversely proportional to voltage.
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