Question

In an electrical circuit two resistors of 8 ohm and 4 ohm are connected in series to a 6 v battery, the heat dessipated by 4 ohms resistor in 5 seconds will be​

Answer 1

Explanation:

The heat dissipated by the 4 ohm resistor in 5 s will be 20 joules. So, the heat dissipated by the 4 ohm resistor in 5 s will be 20 joules. Hence, this is the required solution

Answer 2

Answer:

5 Joules

Explanation:

Since resistances are in series,

Equivalent resistance of the circuit= 8ohm+4ohm

=12 ohm

Current in circuit(I)=V/R

=6/12 A

=0.5 A

Heat dissipated by 4 ohm resistor

=I^2Rt

=0.5^2 x 4 x 5 Joules

=0.25 x 20 joules

=5 joules