Why is fuse wire always placed in a live circuit?

The fuse wire is always connected in the live wire of the circuit because if the fuse is put in the neutral wire, then due to excessive flow of current when the fuse burns, current stops flowing in the circuit, but the appliance remains connected to the high potential point of the supply through the live wire.

E M B I B E

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 1

MEDIUM

10th CBSE

IMPORTANT

Earn 100

Show graphically the relationship between $V$ and $I$ in Ohm's law verification.

Important Questions on Electricity

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 2

Derive an expression for the total resistance

R

(equivalent resistance) when resistors

r_{1}, r_{2}

and

r_{3}

are connected in series.

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 3

Derive an expression for the total equivalent resistance $R$ when resistors $r_{1}, r_{2}$ and $r_{3}$ are connected in parallel.

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 4

What happens to the resistance of a conductor if its length is increased?

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 4

What happens to the resistance of a conductor if its area of cross-section is decreased?

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 4

What happens to the resistance of a conductor if its temperature is raised?

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 5

State Ohm's law? How can it be verified experimentally? Does it hold good under all conditions? Comment.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 6

What is electrical resistivity of a material? What is its unit? Describe an experiment to study the factors on which the resistance of conducting wire depends.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3B>Q 7

How will you infer with the help of an experiment that the same current flows through every part of the circuit containing three resistances in series connected to a battery?