TEST: ELECTRIC CURRENTS
Refer to the following series circuit: Calculate the current through R1. I = ____ amp
1.0
Refer to the following series circuit: Calculate the current through R2. I = ____ amp
1.0
Refer to the following series circuit: Calculate the potential drop across R1. V = ____ volts
10
Refer to the following parallel circuit: Calculate the total current. I = ___ amp
10.
Refer to the following series circuit: Calculate the total power developed in the circuit. P = ____ watts
15
Refer to the following series circuit: Calculate the total resistance. RT = ___
15
Refer to the following parallel circuit: Calculate the power developed in R1. P1 =_____watts 1300 240 48 190
190
Refer to the following parallel circuit: Calculate the total resistance. RT = ____
2.3
Refer to the following parallel circuit: Calculate the current through R2. I = _____ amp 54 2.7 2.0 10.
2.7
Refer to the following parallel circuit: Calculate the potential drop across R1. VR1 =________volts 30. 160 24 6.0
24
Refer to the following series circuit: Calculate the potential drop across R2. V = ____ volts
5
Refer to the following parallel circuit: Calculate the current through R1. I = _____ amp 54 8.0 2.0 10.
8.0
An ammeter is a device that measures potential. True False
False
Current is constant at all points in a parallel circuit. True False
False
Current is directly proportional to resistance. True False
False
The watt is a unit of potential energy. True False
False
As parallel resistors are added, circuit resistance decreases. True False
True
Electrons in a series circuit all follow the same path. True False
True
Resistance of a conductor is directly proportional to length. True False
True
Silver has very low resistivity. True False
True
The expression that relates emf, potential, current, and resistance is Ohm's law. True False
True
Match these items. Match the items in the left column to the items in the right column. 1.amperes 2.volts 3.watts 4.EMF 5.ohm-cm
electromotive force resistivity voltage power current
