Home
Class 12
PHYSICS
A battery having emf 4 V and internal re...

A battery having emf 4 V and internal resistance `0.5 Omega` is connected with a resistance of `4.5 Omega`. The voltage at the terminals of the battery now is

A

4.5 V

B

4 V

C

2 volt

D

3.6 V

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is closed is

A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. The current in the circuit is 0.5 A. The terminal voltage of the battery when the circuit is closed is

A battery has e.m.f. 4V and internal resistance r . When this battery is connected to an external resistance of 2 Omega , a current of 1A flows in the circuit. How much current will flow if the terminals of the battery are connected directly.

Five cells each of internal resistance 0.2 Omega and e.m.f. 2V are connected in series with a resistance of 4 Omega . The current through the external resistance is :

A battery of emf 10V and internal resistance 3Omega is connected to a resistor. If the current in the circuit is 0.5 A , what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?

A storage battery of emf 8.0V and internal resistance 0.5Omega is being charged by a 120 V de supply using a series resistor of 15.5Omega. What is the terminal voltage of the battery during charging? What is the purpose of having a series resistor in the charging circuit ?

A battery of e.m.f. 12V and internal resistance 2Omega is connected in series with a tangent galvanometer of resistance 4Omega . The deflection is 60^@ when the plane of the coil is along the magnetic meridian. To get a deflection of 30^@ , the resistance to be connected in series with the tangent, galvanometer is :

A battery of e.m.f. E and internal resistance r is connected to variable resistance R as shown here. Which one of the following is true?

The terminals of a 18 V battery with an internal resistance of 24 Omega are connected to a circular wire of resistance 24Omega at two point distant at one quarter of the circumference of a circular wire . The current through the bigger arc of the circle will be