7. A current of 2 A flows through a 2 2 resistór when connectedacross à battery. The same battery supplies a current of 0.5whenconnectedresistor.Theinternalacrossaresistance of the battery is(а) 1/3 2(c) 1 2(b) 1/4 2(d) О.5 2

We have a battery which supplies a current I1=2 A for a R1=2 ohm resistor and a current I2=0.5 A for…

7. A current of 2 A flows through a 2 2 resistor when connected across a battery. The same battery supplies a current of 5 A when connected resistor. The internal across a resistance of the battery is (a) 1/3 2 (c) 1 2 (b) 1/4 2 (d) 0.5 2

7. A current of 2 A flows through a 2 2 resistor when connected across a battery. The same battery supplies a current of 5 A when connected resistor. The internal across a resistance of the battery is (a) 1/3 2 (c) 1 2 (b) 1/4 2 (d) 0.5 2

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter9: Condensed Matter Physics

Section: Chapter Questions

Problem 81P: A Pb wire wound in a tight solenoid of diameter of 4.0 mm is cooled to a temperature of 5.0 K. The...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

7. A current of 2 A flows through a 2 2 resistór when connected
across à battery. The same battery supplies a current of 0.5
when
connected
resistor.
The
internal
across
a
resistance of the battery is
(а) 1/3 2
(c) 1 2
(b) 1/4 2
(d) О.5 2

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