emf `epsilon` এবং অভ্যন্তরীণ রেজিস্ট্যান্স r এর একটি কোষ বহিরাগত সহ 0.5 A কারেন্ট দেয়

A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega . Calculate (a) internal resistance of the cell and (b) emf of the cell.

The figure below shows a battery of emf epsilon connected to an inductor L and resistance R in series. If the switch is closed at t=0, then the total charge that flows from the battery in time constant of the circuit is

In the circuit shown in Fig 7.25 , (a) what must the emf epsilon of the battery be in order for a current of 2.00 A to flow through the 5.00 V battery , as shown ? In the polarity of the battery correct as shown ? b. How long does it take for 60.0 J of thermal energy to be produced in the 10.0 Omega resistor?

The resistance of the meter bridge AB in given figure is 4 Omega .With a cell of emf epsilon=0.5 V and rheostat resistance R_(h) = 2 Omega the null point is obatined at some point J is found for R_(h) = 6 Omega " The emf "epsilon _(2) is

A capacitor of capacitance C is connected to a battery of emf (epsilon) at t=0 through a resistance R. Find the maximum rate at which energy is stored in the capacitor. When does the rate has this maximum value?

A circuit that contains three identical resistors with resistance R = 9.0 Omega each, two identical inductors with inductance L = 2.0 mH each, and an ideal battery with emf epsilon = 18 V . The current 'i' through the battery just after the switch closed

The circuit shown in the figure consists of a battery of emf epsilon = 10 V , a capacitor of capacitance C = 1.0 mu F and three resistors of value R_(1) = 2 Omega, R_(2) = 2 Omega and R_(3) = 1 Omega , Initially the capacitor is completely uncharged and the switch S is open. The switch S is closed at t = 0 . Then

Shown an arrangement to measure the emf (epsilon) and internal resistance r of a battery. The voltmeter has a very high resistance and the ammeter also has some resistance.The voltmeter reads 1.52 V when the switch S is open.When the switch is closed the voltmeter reading drops to 1.45 V and the ammeter read 1.0A Find the emf and the internal resistance of the battery.