Current Electricity and Electrical InstrumentHard
Question
When the power delivered by 100 volt battery is 40 watts the equivalent resistance of the circuit is :
Options
A.100 ohms
B.250 ohms
C.300 ohms
D.350 ohms
⇒ R = 
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
In the figure shown the current flowing through 2 R is :...The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its stand and cell is E volt. It is employed to mea...Two ideal batteries of emf V1 and V2 and three resistances R1, R2 and R3 are connected as shown in the figure. The curre...In the following circuit the current flowing the 1kΩ resistor is :-...The resistance of galvanometer is G ohm and the range is 1 volt. The value of resistance used to convert it into a voltm...