Question

in current of 5 A flows through the heater and the amount of heat produced is 54000 J in 6 min find the resistance of electric heater​

Answer 1

Answer:

Resistance of electric heater is 6 ohm.

Explanation:

Given

R = ?

i = 5 ampere

H = 54000 Joule

t = 6 minutes

1 minute = 60 seconds

1 minute = 60 seconds6 minutes = 60 × 6 = 360 seconds

By using formula of heat :

H = i^2Rt

R = H/i^2t

R = 54000/5×5×360 ohm

R = 54000/9000 ohm

R = 54/9 ohm

R = 6 ohm

Here

H is the amount of heat produced through heater.

i is the current flow through the heater.

R is the resistance of electric heater.

t is time taken.

HEAT

• Heat is a form of energy.
• Si unit of heat is Joule (J).
• Other unit of heat is calorie.
• Heat is generally represented by H.

Answer 2

Answer:

Resistance=6 ohm

Explanation:

refer the attachment