Question

To produce100jouls of heat in 10 seconds how much voltage should be applied to 100 ohm resistance

Answer 1

⭐hey there!!

Given :

=> W = 100 J, t = 10 sec

=> R = 100 ohm

=>> V =??

Now we have to find v

Power (p) = w/t = 100/10 = 10 W

So we know that power(P) = V²/R

➡Where V = voltage.

➡R = resistance

Now, use above formula,..

➡ W = V²/R

➡V² = WR

➡ V = √WR = √1000 = 10√10 = 31.62 volt

_______________________________________

⭐Hope it will help u

Answer 2

Heat(H) = 100 J
Time(t) = 10 s
Resistance(R) = 100 ohm
Voltage(V) = ?
Current(I) = ?

H = I²Rt
100 = I²(100)(10)
I² = 1/10
I = 1/√10 A
V = IR
$= \frac{1}{ \sqrt{10} } \times 100$
V = 10√10 v