A potential difference of 20 V is applied across the ends of a coil. The amount of heat generated in it is 800 cal/s. The value of resistance

Correct option is  A) Q = mL

Correct option is  B) 1 g

Correct option is  D)50g

A) Ohm’s law

Correct option is  D) 2

Given: V = 20 V d = 1.25 mm = 1.25 × 10-3 m To Find: Magnitude of electric field (E) Formula: E = \(\frac{V}{d}\) Calculation: From formula, E = \(\frac{20}{1.25\times 10^{-3}}\) = 1.6 × 104 V/m

C) Faraday’s law

Correct option is: (D) high potential.

Correct option is: (B) E(I – \(\frac{r}{R}\))

Correct Answer - 19