Answered

A resistor, with a potential difference of 210 V across it, transfers electrical energy to thermal energy at the rate of 3030 W. What is the resistance of the resistor?

Answer :

Answer:

R=14.55 ohm

Explanation:

Given that

Potential difference ,ΔV = 210 V

Energy ,P = 3030 W

Lets take the resistance = R

We know that energy P is given as

[tex]P=\dfrac{\Delta V^2}{R}[/tex]

[tex]R=\dfrac{\Delta V^2}{P}[/tex]

Now by putting the values in the above equation we get

[tex]R=\dfrac{210^2}{3030}\ ohm[/tex]

R=14.55 ohm  

That is why the resistance of the resistor will be 14.55 ohm.

Chelboy

Answer:14.6ohms

Explanation:

Potential difference(v)=210V

rate of energy=power(p)=3030watts

Resistance(r)=?

r=v^2/p

r=(210)^2/3030

r=44100/3030

r=14.6ohms