Home
Class 12
PHYSICS
A metallic resistor is connected across ...

A metallic resistor is connected across a battery.If the number of collisions if the free electrons with the lattice is somehow decreased in the resistor (for example,by cooling it ),the current will

A

(a)increase

B

(b)decrease

C

(c ) remain constant

D

(d) become zero

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Objective 2|9 Videos

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Exercises|84 Videos

  • ELECTRIC CURRENT IN CONDUCTORS

    HC VERMA|Exercise Short Answer|17 Videos

  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Exercises|11 Videos

  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA|Exercise Exercises|23 Videos

Similar Questions

Explore conceptually related problems

A current of 2 A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 Omega resistor. The internal resistance of the battery is

When a 12V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.

Three equal resistors connected across, a source of emf together dissipate 10 watt of power. What will be the power dissipated in watt if the same resistors are connected in parallel across the same source of emf

A battery or emf 10 V and internal resistance 3 Omega is connected to a resistot. If the current in the circuit is 0.5 A, what is the resistance of the resistor ?

20Omega resistor is connected with the A.C. source of V = 282sin (120 pi t), the current passing through the resistor will be ……..

n resistors each of resistance r are connected to a battery of emf epsilon and internal resistance r. Then the ratio of terminal voltage to emf of battery = ...... .

A network of resistore is connected to a 16 V battery with internal resistance of 1Omega, as shown in (a) Compute the equivalent resistance of the network. (b) Obtain the current in each resistor. (c ) obtain the voltage drops V _(AB), V _(BC) and V _(CD)

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