Question

Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval

• A. Equal amounts of thermal energy must be produced in the resistors
• B. Unequal amounts of thermal energy may be produced
• C. The temperature must rise equally in the resistors
• D. The temperature must rise unequally in the resistors

Answer 1

Answer: (A)

Equal amounts of thermal energy must be produced in the resistors

Answer 2

$P = i^{2}R$ (i and R are same)

So P will be same for given resistors.