A complete series circuit consists of a 11.7V battery, a 4.66 ? resistor, and a

Question

A complete series circuit consists of a 11.7V battery, a 4.66

? resistor, and a switch. The internal resistance of the battery is 0.320?

A)What does an ideal voltmeter read when placed across the terminals of the battery? The switch is open.

B)What does an ideal voltmeter read when placed across the resistor? The switch is open.

C) What does an ideal voltmeter read when placed across the switch? The switch is open.

D)What does an ideal voltmeter read when placed across the terminals of the battery? The switch is closed.

E) What does an ideal voltmeter read when placed across the resistor? The switch is closed.

F) What does an ideal voltmeter read when placed across the switch? The switch is closed.

Explanation / Answer

The switch is opened. ( zero current)

a) across the terminals of the battery it will read =11.7 v

b) across the resistors =0

c) across the switch =11.7 V

----------------------------------------------------------------------------------------

switch is closed. ( current flows)

d)across the terminals of the battery it will read=10.948 V

V=IReq

V=11.7*4.66/(4.66+0.320) = 10.948 v

e) across the resistors= 10.948 v

f)placed across the switch =zero

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