Current Electricity and Electrical InstrumentEasy
Question
A heater coil connected to a supply of a 220 V is dissipating some power P1. The coil is cut into half and the two halves are connected in paralle. The heater now dissipates power P2. The ratio of power P1 : P2 :-
Options
A.2 : 1
B.1 : 2
C.1 : 4
D.4 : 1
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The electric power is transferred to a far distance at high potential because:-...Same length of two identical wires are first connected is series and them in parallel then the amount of heat produced i...A wire of resistance R is stretched to double its length. It6s new resistance is...A potential difference V is applied across a copper wire of diameter d and length L. when only d is doubled, the drift v...The reading of voltmeter is...