Question

Question 30:
An electric room heater draws a current of 2.4 A from the 120 V supply line. What current will this room heater draw when connected to 240 V supply line ?

Lakhmir Singh Physics Class 10

Answer 1

Answer:

i1v1=i2v2 apply it

Explanation:

ur answer will come 6by5

Answer 2

Dear Student,

◆ Answer -

I2 = 4.8 A

● Explaination -

# Given -

V1 = 120 V

I1 = 2.4 A

V2 = 240 V

# Solution -

Resistance of electric heater is -

R = V1 / R1

R = 120 / 2.4

R = 50 ohm

Current drawn by heater at 240 V is -

I2 = V2 / R

I2 = 240 / 50

I2 = 4.8 A

Therefore, electric heater will draw a current of 4.8 A.

Thanks dear...