SAT Subject Test in Physics - Electric Circuits

1

A capacitor with capacitance is constructed by putting a thin piece of cardboard between two copper plates, then each plate is connected to a battery. If the copper plates are cut in half then what is the effect on the capacitance of the circuit?

2

If a circuit contains a battery and a $2\Omega$ resistor what is the current of the circuit?

3

A capacitor with capacitance is constructed by putting a thin piece of cardboard between two copper plates, then each plate is connected to a battery. If the copper plates are cut in half then what is the effect on the capacitance of the circuit?

4

If a circuit contains a battery and a $2\Omega$ resistor what is the current of the circuit?

5

A voltage of applied between the ends of a wire results in a current of . What is the resistance of the wire?

6

A voltage of applied between the ends of a wire results in a current of . What is the resistance of the wire?

7

There are three resistors in parallel in a circuit with resistances of $10\Omega$ , $20\Omega$ , and $30\Omega$ .

What is the equivalent resistance?

8

There are three resistors in parallel in a circuit with resistances of $10\Omega$ , $20\Omega$ , and $30\Omega$ .

What is the equivalent resistance?

Electric Circuits

Practice Questions