Current Electricity and Electrical InstrumentHard
Question
A battery has e.m.f. 4V and internal resistance ′r′. When this battery is connected to an external resistance of 2 ohms, a current of 1 amp. flows in the circuit. How much current will flow if the terminals of the battery are connected directly : -
Options
A.1 A
B.2 A
C.4 A
D.infinite
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The electric current in the circuit is given as $i = i_{o}(t/T)$. The r.m.s current for the period $t = 0$ to $t = T$ is...An insulating pipe of cross - section area ′A′ contains an electrolyte which has two types of ions: their ch...In the circuit shown P ≠ R, the reading of galvanometer is same with switch S open or closed. Then...If power dissipated in the 9Ω resistor in the circuit shown is 36 watt, the potential difference across the 2Ω...When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50V is produced. The self -inductance of the...