Question

A potential difference 40vis applied across a resistor of resistance 50 ohms in 1 hour find the. 1 current, charge and the work done by the charge

Answer 1

Answer:

sorry I haven't studied it yet..

you can ask your teacher for better explanation

Answer 2

Answer:

Hence, the current = 0.8 A

Hence, work done by charge = 115200 Joules

Explanation:

Given,

Potential Difference, V = 40 V

Resistance, R = 50 ohms

Time, T = 1 hour = 60 min = 3600 sec

We know that,

Resistance = Potential Difference / Current

=> R = V / I

=> 50 = 40 / I

=> I = 40/50

=> I = 0.8 A

Hence, the current = 0.8 A

We know that,

Work done, W = VIT

W = 40 × 0.8 × 3600

=> W = 32 × 3600

=> W = 115200 Joules

Hence, work done by charge = 115200 Joules