Current Electricity and Electrical InstrumentHard
Question
Potential gradient x = 
Here (x) (AC) = 3 ⇒ AC =
= 2m
A constant voltage is applied between the ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
Here (x) (AC) = 3 ⇒ AC =
= 2mA constant voltage is applied between the ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
Options
A.both the length and the radius of the wire are halved
B.both the length and the radius of the wire are halved
C.the radius of the wires is doubled
D.the length of the wire is doubled
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