Question

for the combination of resistors shown in the following figure find the equivalent resistance between M and N.( B) t state the law of heating​

Answer 1

Explanation:

The question statement is incomplete as this does not define the position of point M and N in the circuit nor any diagram is given where the positions can be seen.

However in general, the rule for series circuit is that resistances add up in series

R = Rm + Rn

Now if they are in parallel circuit, then net resistance reduces.

Its formula is;

1/R = 1/Rm + 1/Rn

Law of Heating

If the temperature at time tis T(t), then Newton’s  law of heating is

T0=α(Ts−T),   T(0)=T0

Answer 2

Explanation:

The question statement is incomplete as this does not define the position of point M and N in the circuit nor any diagram is given where the positions can be seen.

However in general, the rule for series circuit is that resistances add up in series

R = Rm + Rn

Now if they are in parallel circuit, then net resistance reduces.

Its formula is;

1/R = 1/Rm + 1/Rn

Law of Heating

If the temperature at time tis T(t), then Newton’s  law of heating is

T0=α(Ts−T),   T(0)=T0

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