Circuits

Front

A physics student is given three 12-ohm resistors with instructions to create the circuit that would have the lowest possible resistance.

Back

parallel circuit with an equivalent resistance of 4.0 ohms

Front

Equivalent resistance of a 15 ohm resistor in parallel with a 30 ohm resistor? Options: 2.0 ohms, 10. ohms, 15 ohms, 25 ohms

Back

10. ohms

Front

Three resistors of 20. ohms, 30. ohms, and 60. ohms are connected in series with a battery. A current of 2 amperes will flow through this circuit when the potential difference of the battery is? Options: 10. V, 220 V, 110 V, 20. V

Back

220 V

Front

Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same two resistors, when connected in parallel, have an equivalent resistance of? Options: 8 Ohms, 2 Ohms, 4 Ohms, 1 Ohms

Back

1 Ohms

Front

Two identical resistors connected in parallel have an equivalent resistance of 40 ohms. What is the resistance of each resistor? Options: 40 Ohm, 160 Ohm, 80 Ohm, 20 Ohm

Back

80 Ohm

Front

Position to place an ammeter to measure current through R1: Options: 1, 2, 3, 4

Back

3

Front

If switch S1 in the given diagram is open, the reading of Ammeter A is: 2.0 A, 1.5 A, 6.0 A, 0.50 A

Back

2.0 A

Front

A 9.0 V battery is connected to a 4.0 Ohm resistor and a 5.0 Ohm resistor. What is the current in the 5.0 ohm resistor? Options: 4.0 A, 1.0 A, 2.3 A, 1.8 A

Back

1.0 A

Front

In which current would ammeter A show the greatest current? Options: 1, 2, 3, 4

Back

4

Front

The equivalent resistance in this part of the circuit is equal to: 19 Ohms, 0.67 Ohms, 1.5 Ohms, 6.3 Ohms

Back

1.5 Ohms