A 68 resistor is in parallel with an 82
resistor. The combination is connected across a
6V supply. The rating of the 68
resistor and 82
resistor should be respectively
The answer is :- 1 p.d. across each resistor is 6 V. Power
dissipated is V2/R Thus power dissipated in
the 68 resistor will be 36/68W = 0.53W. power dissipated
in 82
resistor will be 36/82W = 0.44W. A resistor
should be chosen such that it's power rating is higher than
that which will be required in use. Thus a 1W resistor would be
used for the 68
resistor, and a 0.5W resistor would be used for
the 82
resistor.
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