Question

solve it fasttttt .......... ​

Answer 1

$\bigstar$ Given:-

A car headlamp of 48 W works on the car battery of 12 V

$\bigstar$ To Find:-

The correct fuse for the circuit of this car headlamp

$\bigstar$ Solution:-

We know that

$\orange{\rm \longrightarrow P=VI}$

Hence;

$\pink{\rm \longrightarrow I=\dfrac{P}{V}}$

We also know that

Fuse is equal to 1.25 times of the normal operating current

$\red{\rm \longrightarrow I=\dfrac{P}{V} \times 1.25 \ A}$

Here

I = Fuse

P = Power

V = Voltage

Units

I = Ampere (A)

P = Watt (W)

V = Volt (V)

According to the question;

We are asked to find the correct fuse for the circuit of this car headlamp

Therefore

We must find "I"

Given that

A car headlamp of 48 W works on the car battery of 12 V

Hence

P = 48 W

V = 12 V

Substituting the values

We get

$\blue{\rm \longrightarrow I=\dfrac{48}{12} \times 1.25 \ A}$

$\green{\rm \longrightarrow I=4 \times 1.25 \ A}$

Therefore

$\purple{\rm \longrightarrow I=5 \ A}$

Hence

The correct fuse for the circuit of this car headlamp = 5 A

Answer 2

Answer:

A car headlamp of 48 W works on the car battery of 12 V

\bigstar★ To Find:-

The correct fuse for the circuit of this car headlamp

\bigstar★ Solution:-

We know that

\orange{\rm \longrightarrow P=VI}⟶P=VI

Hence;

\pink{\rm \longrightarrow I=\dfrac{P}{V}}⟶I=

V

P

We also know that

Fuse is equal to 1.25 times of the normal operating current

\red{\rm \longrightarrow I=\dfrac{P}{V} \times 1.25 \ A}⟶I=

V

P

×1.25 A

Here

I = Fuse

P = Power

V = Voltage

Units

I = Ampere (A)

P = Watt (W)

V = Volt (V)

According to the question;

We are asked to find the correct fuse for the circuit of this car headlamp

Therefore

We must find "I"

Given that

A car headlamp of 48 W works on the car battery of 12 V

Hence

P = 48 W

V = 12 V

Substituting the values

We get

\blue{\rm \longrightarrow I=\dfrac{48}{12} \times 1.25 \ A}⟶I=

12

48

×1.25 A

$\green{\rm \longrightarrow I=4 \times 1.25 \ A}⟶I=4×1.25 A</p><p></p><p>Therefore</p><p>\purple{\rm \longrightarrow I=5 \ A}⟶I=5 A$

Hence

The correct fuse for the circuit of this car headlamp = 5 A