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Home » When a current of 4amp passes through a certain resistor for 10 minutes, 2.88 × 104 J of heat are produced. Calculate a) the power of the resistor b) the voltage across the resistor
When a current of 4amp passes through a certain resistor for 10 minutes, 2.88 × 104 J of heat are produced. Calculate a) the power of the resistor b) the voltage across the resistor
CBSE | Class 10 | Electricity | Lakhmir Singh | Physics
When a current of 4amp passes through a certain resistor for 10 minutes, 2.88 × 104 J of heat are produced. Calculate a) the power of the resistor b) the voltage across the resistor

Answer

Given,

4 amps = I

 

T = 10 minutes = 600 seconds

 

2.88 104 J H = 2.88 104 J H = 2.88 104 J H = 2.88 104

 

a) We are aware of this.

 

I2RT = H

 

42600R = 28800R

 

3 ohms R = 3 ohms R = 3 ohms R

 

We are aware of this.

 

I2R = P

 

48W = P

 

c) We are aware of this.

 

IR = V

 

V Equals 12 volts

i

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