TWO CONDUCTING WIRE OF THE SAME MATERIAL AND OF EQUAL LENGTH AND EQUAL

1.	TWO CONDUCTING WIRE OF THE SAME MATERIAL AND OF EQUAL LENGTH AND EQUAL DIAMETER ARE FIRST CONNECTED IN SERIES AND THEN PARALLEL IN A CIRCUIT ACROSS THE SAME POTENTIAL DEFFERENCE THE RATIO OF HEAT PRODUCED IN SERIES AND PARALLEL COMBINATION WOULD BE ? A)1:2 B)2:1 C) 1:4 D) 4:1 PLEASE TELL EXPLANATION ALSO
Answer» let RESISTANCE of each resistor be R then EQUIVALENT resistance in parallel CONNECTION is R/2 and equivalent resistance in series connection is 2R HEAT produced = IR2 ratio of heat produced is I(2R)2/I(R*2) ANS = 4:1

TWO CONDUCTING WIRE OF THE SAME MATERIAL AND OF EQUAL LENGTH AND EQUAL DIAMETER ARE FIRST CONNECTED IN SERIES AND THEN PARALLEL IN A CIRCUIT ACROSS THE SAME POTENTIAL DEFFERENCE THE RATIO OF HEAT PRODUCED IN SERIES AND PARALLEL COMBINATION WOULD BE ? A)1:2 B)2:1 C) 1:4 D) 4:1 PLEASE TELL EXPLANATION ALSO

Answer»

let RESISTANCE of each resistor be R then

EQUIVALENT resistance in parallel CONNECTION is R/2

and equivalent resistance in series connection is 2R

HEAT produced = IR*2

ratio of heat produced is I(2R)*2/I(R*2)

ANS = 4:1

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