RankLab
Back to Questions
PhysicsMediumNumerical2023 Ā· 24 Jan Shift 1

Q11.As shown in the figure, a network of resistors is connected to a battery of 24 V with an internal resistance of 3 š›ŗ. The currents through the resistors š‘…4 and š‘…5 are š¼4 and š¼5 respectively. The values of š¼4 and š¼5 are: 8 2 24 6 (1) š¼4 = 5 A and I5 = 5 A (2) š¼4 = 5 A and š¼5 = 5 A (3) š¼4 = 6 A and š¼5 = 24 A (4) š¼4 = 2 A and š¼5 = 8 A 5 5 5 5

What This Question Tests

This question tests the understanding of how the electrostatic force between charges changes in a dielectric medium compared to vacuum, and how to find an equivalent distance in air.

Concepts Tested

Coulomb's LawDielectric constantForce between charges

Formulas Used

F = (1/(4πε₀)) (q₁qā‚‚/r²) (in air)

F = (1/(4πε₀k)) (q₁qā‚‚/r²) (in medium)

šŸ“š NCERT Sections This Tests

3.2 — A Battery Of Emf 10 V And Internal Resistance 3 Ω Is Connected To A

Physics Class 11 Ā· Chapter 3

80% match

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

8.1 — Figure 8.5 Shows A Capacitor Made Of Two Circular Plates Each Of

Physics Class 11 Ā· Chapter 8

79% match

8.1 Figure 8.5 shows a capacitor made of two circular plates each of radius 12 cm, and separated by 5.0 cm. The capacitor is being charged by an external source (not shown in the figure). The charging current is constant and equal to 0.15A. (a) Calculate the capacitance and the rate of change of potential difference between the plates. (b) Obtain the displacement current across the plates. (c) Is Kirchhoff’s first rule (junction rule) valid at each plate of the capacitor? Explain. FIGURE 8.5

3.1 — The Storage Battery Of A Car Has An Emf Of 12 V. If The Internal

Physics Class 11 Ā· Chapter 3

78% match

3.1 The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω, what is the maximum current that can be drawn from the battery?