Home
Class 12
PHYSICS
Two resistances R and 2R are connected i...

Two resistances R and 2R are connected in parallel in an electric circuit. The thermal energy developed in R and 2R are in the ratio

A

(a)1:2

B

(b)2:1

C

(c )1:4

D

(d)4:1

Text Solution

Verified by Experts

The correct Answer is:
B
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 questions for short answer|17 Videos
  • DISPERSION AND SPECTRA

    HC VERMA|Exercise Exercises|11 Videos
  • ELECTRIC CURRENT THROUGH GASES

    HC VERMA|Exercise Exercise|23 Videos

Similar Questions

Explore conceptually related problems

Two resistors R and 2R are connected in series in an electric circuit. The thermal energy developed in R and 2R are in the ratio

Two indentical resistors are connected in parallel then connected in series. The effective resistance are in the ratio

Two unequal resistances R_1 and R_2 ae connected across two identical batteries of emf epsilon and internal resistance r (figure) . Can the thermal energies developed in R_1 and R_2 be equal in a given time. If yes, what will be the condition? (Figure Question)

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.

Two resistors of resistances R_(1) = 150 pm 2 Ohm and R_(2) = 220 pm 6 Ohm are connected in parallel combination. Calculate the equivalent resistance. Hint: (1)/(R') = (1)/(R_(1)) + (1)/(R_(2))

When 'n' resistors of requal resistance (R) are connected in series and in parallel resectively, then the ratio of their effective resistance is

n resistances, each of r Omega , when connected in parallel give an equivalent resistance of R Omega . If these resistances were connected in series, the combination would have a resistance in homs equal to