Current Electricity and Electrical InstrumentMedium
Question
For a particular resistance X in the figure shown the thermal power generated in ′Y′ is maximum when Y = 4Ω. Then X is:
Options
A.2Ω
B.3Ω
C.1 Ω
D.6 Ω
Solution
For maximum power req = Req ⇒ 2 + 
= 4 ⇒ 
= 4
= 4 ⇒ = 4Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The temperature at which thermal electric power of a thermo couple becomes zero is called :-...In the given circuit, with steady current, the potential difference across the capacitor must be...Seven resistances are connected as shown in the figure.The equivalent resistance between A and B is : -...In the circuit, the galvanometer G shows zero deflection. If the batteries A and Bhave negligible internal resistance, t...In an electric Katle water boils in 15 minute after switching on the current. If the length of heating wire is decreased...