Home
Class 12
PHYSICS
Three 200 Omega resistors are connected ...

Three `200 Omega` resistors are connected as shown in figure. The maximum power that can be dissipated in any one of the resistor is 50 W. Find the total power in watts dissipated in the circuit for maximum voltage across the terminals A and B.

Text Solution

Verified by Experts

The correct Answer is:
75
The minimum current that can be passed through any resistor is `= sqrt((50)/(200)) = (1)/(2) A`
To keep all resistors safe `I le (1)/(2) A` and also
`(1)/(2) le (1)/(2) rarr I le 1 A`

This means `I lt (1)/(2)A`
`(V_(A)-V_(B))_(max)=(1)/(2)xx300 =150 V`
`P=((150)^(2))/(300)=75 W`.
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.56|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.57|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.54|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise High Level Problems (HIP)|19 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

The total power dissipated in watts in the circuit shown here is

Three 200Omega resistors are connected as shown in figure. Any of these resistors breaks down if the rate of heat dissipation in it exceeds 50 W. Then, the maximum rate of total heat dissipation in the three resistors together is __________ W.

Three 10 Omega , 2 W resistors are connected as in Fig. 7.34 . The maximum possible voltage between points A and B without exceeding the power dissipation limits of any of the resistors is

Three 60 W, 120 V light bulbs are connected across a 120 V source as shown in figure. The total power dissipation in the three bulbs are

The power dissipated in the circuit shown in the figure is 30 W. The value of R is

Three 2 Omega resistors, A, B and C are connected as shown in figure. Each of them dissipates energy and can with stand a maximum power of 18 W without melting. Find the maximum current that can flow through the three resistors ?

The maximum voltage that can be applied to 5K Omega and 8W resistor without exceeding its heat dissipating capacity is

The switch shown in figure is suddenly closed. Find the current through the resistor when energy dissipated in the resistor is one third of total energy dissipated in the resistor.

Three electric bulbs of 200 W, 200 W and 400 W are connected as shown in figure. The resultant power of the combination is

Power dissipated across the 8 Omega resistor in the circuit shown here is 2 w. The power U dissipated in watt units across the 3Omega resistor is .