A constant voltage is applied between two ends of a metallic wire. If the length is halved and the radius of the wire is doubled, the rate of heat developed in the wire will be: (1) Increased 8 times (2) Doubled (3) Halved (4) Unchanged
A constant voltage is applied between two ends of a metallic wire. If the length is halved and the radius of the wire is doubled, the rate of heat developed in the wire will be:\\
(1) Increased 8 times\\
(2) Doubled\\
(3) Halved\\
(4) Unchanged