5. In the circuit below, the battery has negligible internal resistance. Lamps L, M and N whic have different resistance are connected as shown. M Which one of the following is always true? (A) Lamps L and N have the same current through them. (B) Lamps L and M have the same current through them. (C) Lamps L and N have the same potential difference across them. (D) Lamps L and M have the same potential difference across them. 6. A conductor of constant resistance dissipates 6.0 W of power when the potential difference across it is 12 V. The power that will be dissipated in this conductor when the potential difference across it is 24 V is

5. In the circuit below, the battery has negligible internal resistance. Lamps L, M and N whic have different resistance are connected as shown. M Which one of the following is always true? (A) Lamps L and N have the same current through them. (B) Lamps L and M have the same current through them. (C) Lamps L and N have the same potential difference across them. (D) Lamps L and M have the same potential difference across them. 6. A conductor of constant resistance dissipates 6.0 W of power when the potential difference across it is 12 V. The power that will be dissipated in this conductor when the potential difference across it is 24 V is

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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

5. In the circuit below, the battery has negligible internal resistance. Lamps L, M and N which
have different resistance are connected as shown.
L
M
N
Which one of the following is always true?
(A) Lamps L and N have the same current through them.
(B) Lamps L and M have the same current through them.
(C) Lamps L and N have the same potential difference across them.
(D) Lamps L and M have the same potential difference across them.
6. A conductor of constant resistance dissipates 6.0 W of power when the potential
difference across it is 12 V. The power that will be dissipated in this conductor when the
potential difference across it is 24 V is
(A) 6.0 W.
(B) 12 W.
(C) 24 W.
(D) 48 W.

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