Potentiometer: The resistive wire AB in the circuit shown has the length of 100cm. When switch S is open, the Galvanometer reads zero for L = L, = 0.4m. Therefore, the emf (E) of the battery is: 4V L A B E G) 14.1 1 R r L r 6Ω Select one: a. 1.6 V b. 0.1 V O c. 2 V d. 2.4 V

Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
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Potentiometer:
The resistive wire AB in the circuit shown has the length of 100cm.
When switch S is open, the Galvanometer reads zero for L = L; =
0.4m. Therefore, the emf (E) of the battery is:
4V
L
A'
B
E
|1_4, 1 1
Rr L r
R
6Ω
Select one:
а. 1.6 V
b. 0.1 V
O c. 2 V
d. 2.4 V
Transcribed Image Text:Potentiometer: The resistive wire AB in the circuit shown has the length of 100cm. When switch S is open, the Galvanometer reads zero for L = L; = 0.4m. Therefore, the emf (E) of the battery is: 4V L A' B E |1_4, 1 1 Rr L r R 6Ω Select one: а. 1.6 V b. 0.1 V O c. 2 V d. 2.4 V
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