# IGCSE Physics Paper-1: Specimen Questions with Answers 53 - 54 of 149

## Question 53

### Question

MCQ▾

In which of the circuits below both lamps are protected by the fuse?

Choice (4)

a.

b.

c.

d.

d.

### Explanation

Fuse is a simple electrical part, which consist of wire and terminal at each end. It protects the circuit in the event of a large current. When large current pass fuse make circuit open. Thus fuse should be connected in series. For choice 4 only fuse protect both the lamps because in it fuse connected in series with both the lamps.

## Question 54

### Question

MCQ▾

Cotton is measured between two points on a scale. This cotton is rolled around a pen 6 times. Find the length of each roll?

Choice (4)

a.

13.2 cm

b.

15.6 cm

c.

2.6 cm

d.

2.2 cm

d.

### Explanation

From first given figure the length of the cotton is measured as,

Now, length of the cotton is wound closely around a pen, and it goes six rounds. So, distance of one round is given as,

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