Home
Class 12
PHYSICS
Two resistors having equal resistances ...

Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval,

A

equal amounts of thermal energy must be produced in the resistors

B

unequal amount of thermal energy may be produced

C

the temperature must rise equally in the resistors

D

the temperature may rise equally in the resistors.

Text Solution

Verified by Experts

The correct Answer is:
A, D
Promotional Banner

Topper's Solved these Questions

  • THERMAL AND CHEMICAL EFFECT OF ELECTRIC CURRENT

    HC VERMA|Exercise Exercise|24 Videos
  • THERMAL AND CHEMICAL EFFECT OF ELECTRIC CURRENT

    HC VERMA|Exercise Objective 1|8 Videos
  • THE SPECIAL THEORY OF RELATIVITY

    HC VERMA|Exercise Exercise|28 Videos
  • X-Rays

    HC VERMA|Exercise Exercise|27 Videos

Similar Questions

Explore conceptually related problems

n equal resistors are first connected in series and then in parallel. The ratio of the equivalent resistance in two cases is

Two coils have a combined resistance of 9 Omega when connected in series and 2 Omega when connected in parallel. Find the resistance of each coil.

Two circular loops of equal radii are placed coaxially at some separation. The first is cut and a battery is inserted in between to drive a current in it. The current changes slightly because of the variation in resistance with temperature. During this period, the two loops

In Joule's heating when the current passed through the circuit is doubled keeping resistance (R ) and time of passage of current (t) constant,then the temperature

Consider N=n_(1)n_(2) indentical cells, each of emf (epsilon) and internal resistance r. Suppose n_(1) cells are joined in series to forn a line and n_(2) such are connected in parallel. The combination drives a current in an external resistance R.(a) find the current in the external resistance, (b) Assuming that n_(1) and n_(2) can be continuously varied, find the relation between n_(1) ,n_(2) R and r for which the current in R in maximum.

a.Three resistors 2Omega,4Omega and 5 Omega are combined in parallel. What is the total resis- tance of the combination? b. If the combination is connected to a battery of emf 20 V and negligible internal resistance, determine the current through each resistor and the total current drawn from the battery.

A battery of emf 100V and a resistor of resistance 10k(Omega) are joined in series. This system is used as a source to supply current to an external resistance R. If R is not greater than 100(Omega) , the current through it is constant up to two significant digits. Find its value, This is the basic principle of a constant-current source.