Question

Potential difference at two points X and Y are 100v and20v.A certain amount of charge Deliver is 160 J of energy per second Find the amount of current flowing between both points

Answer 1

Explanation:

You mean the electric Potentials of two points are 100V ( point x) and 20V( point y)

Since potential of X is higher than Y, conventional current is said to flow from X to Y

Potential difference = 80 -20 = 60V

=> V = 60V

Power = 160W. ( since joules per second is = watt)

I = ?

Power = V^2 / R

=> R = 60 x 60 / 160

= 22.5 ohms

V = IR

=> I = V/R

=> I = 60 / 22.5

=> I = 2.66... A

Answer 2

Answer:

Since potential of X is higher than Y, conventional current is said to flow from X to Y

Potential difference = 80 -20 = 60V

=> V = 60V

Power = 160W. ( since joules per second is = watt)

I = ?

Power = V^2 / R

=> R = 60 x 60 / 160

= 22.5 ohms

V = IR

=> I = V/R

=> I = 60 / 22.5

=> I = 2.66... A

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Explanation: