Download P2.6, WS4

PHYSICS 2.6
WORKSHEET FOUR
1.
Name:
SERIES AND PARALLEL RESISTORS AND POWER
The diagrams below show various arrangements of resistors. For each arrangement, calculate
the effective or total resistance and write it in the box below. The resistance values are in Ohms.
5
8
2
8
9
9
8
9
5
5
8
5
8
6
9
2.
A
In the circuit opposite, the battery has a voltage of 20V.
(a) Calculate the effective resistance of the circuit.
5
8
3
2
(b) Calculate the current flowing through the circuit.
(c) Calculate the voltage across the 8 Ohm resistor.
(d) Calculate the voltage across the 2 Ohm resistor.
(e) Calculate the power consumed in the 8 Ohm resistor.
3.
In the circuit opposite the battery has a voltage of 9V.
A
(a) Calculate the effective resistance of the circuit.
35
15
(b) Calculate the current flowing through the battery.
(c) Calculate the current flowing through each of the resistors
(d) Calculate the power delivered by the battery.
4.
In the circuit on the right the battery voltage is 20V.
A
(a) Calculate the effective resistance of the circuit.
20
6
10
(b) Calculate the current flowing through the battery.
V
(c) Calculate the voltage reading on the voltmeter.
(d) Calculate the Voltage across the 10 Ohm resistor.
(e) Calculate the power output of the battery.
(f) Calculate the power consumed by the 6 Ohm resistor.
5.
In the circuit on the right the battery voltage is 40V.
(a) What is the effective resistance of the circuit?
A
40
10
20
15
(b) Determine the reading on the voltmeter.
V