EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Current Electricity>MHT-CET 2020 (13-Oct Shift 1)>Q 7

EASY

MHT-CET

IMPORTANT

Earn 100

The length of a potentiometer wire is $L .$ A cell of e.m.f. $E$ is balanced at a length $\frac{L}{5}$ from the positive end of the wire. If the length of the wire is increased by $\frac{L}{2}$ , at what distance will the same cell give a balance point?

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Important Questions on Current Electricity

EASY

MHT-CET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 18 - Current Electricity>MHT-CET 2020 (12-Oct Shift-1)>Q 8

Two wires

A

and

B

of equal lengths are connected in left and right gaps, of meter bridge, respectively. The null point is obtained at

40 cm

from left end. Diameters of the wires

A

and

B

are in the ratio

3 : 1

, the ratio of specific resistance of

A

to that of

B

is