Home
Class 12
PHYSICS
If the power dissipated in 9 Omega resis...

If the power dissipated in `9 Omega` resistor in the given circuit is 36 W, then calculate the potential difference across the `2 Omega` resistor.

Text Solution

Verified by Experts

Current through `9 Omega` resistor is given by `P = I^2 R`
` I_1^2 = 36 / 9 = 4`
` :." "I_1 = 2 A`
Since `9 Omega` and ` 6 Omega` are in parallel connection.
` 9 I_1 = 6 I_2 `
`:." "I_2 = 9/6 xx I_1`
`I_1 = 2 A`
`:." "I_1 = 9/6 xx 2 = 3 A`
` :." "I = I_1 + I_2 = 2 + 3 = 5 A`. `:." Potential difference across "2 Omega"resistores is "`
` 5 xx 2 = 10 V`
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the voltage drop across 18 Omega resistor in the given circuit.

If power dissipaited the 9 Omega resistor is shown is 36 watt,the potential difference across the 2 Omega resistor is

Calculate the equivalent resistance for the circuit which is connected to 24V battery and also find the poetntial differnce across 4 Omega and 6 Omega resistor in the circuit .

An inductor of inducance 5.0 H, having a negligible resistance, is connected in series with a 100 Omega resistor and a battery of emf 2.0 V. Find the potential difference across the resistor 20 ms after the circuit is switched on.

If in the circuit, power dissipation is 150 W, then R is…

A cell has an emf of 1.5V and an internal resistance 1 Omega . It is connected to two resistances 2 Omega and 3 Omega in series. Find (a) the current flowing in the circuit, and (b) potential difference across the ends of each resistance.

In a series LCR circuit with an AC source, R = 300 Omega, C = 20 muF, L = 1.0 henry, epsilon_(rms) = 50 V and v = 50/(pi) Hz . Find (a) the rms current in the circuit and (b) the rms potential differences across the capacitor, the resistor and the inductor. Note that the sum of the rms potential differences across the three elements is greater than the rms voltage of the source.

Consider the circuit shown in figure.Find (a) the current in the circuit, (b) the potential drop across the (5 Omega) resistor,(c )the potential drop across the 10(Omega) resistor.(d)Answer the parts (a),(b)and (c )with reference to figure.