Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202324 Jan 2023Morning ShiftPhysicsCurrent ElectricityActual

As shown in the figure, a network of resistors is connected to a battery of 24 V with an internal resistance of 3 Ω . The currents through the resistors R 4 and R 5 are I 4 and I 5 respectively. The values of I 4 and I 5 are:

Options

  1. AI 4 = 8 5   A and I 5 = 2 5   A
  2. BI 4 = 24 5   A and I 5 = 6 5   A
  3. CI 4 = 6 5   A and I 5 = 24 5   A
  4. DI 4 = 2 5   A and I 5 = 8 5   A

Correct answer

D. I 4 = 2 5   A and I 5 = 8 5   A

Step-by-step solution

Equivalent resistance of circuit R eq = 3 + 2 × 2 2 + 2 + 2 + 20 × 5 20 + 5 + 2 = 12   Ω Current through battery i = 24 12 = 2   A Now, I 4 = R 5 R 4 + R 5 × 2 = 5 20 + 5 × 2 = 2 5   A and I 5 = i - I 4 = 2 - 2 5 = 8 5   A

Practice Current Electricity on Quantrex Academy →

More from Current Electricity

A metal wire of cross-sectional area 0.5 mm ^2 and length 100 m is connected across a battery of e.m.f. 2 V and internal resistance 1 . The density, atomic mass and electrical cond 2026As shown in the figure, the resistance of a galvanometer G can be found by the half-deflection method. Here the resistance R₂ is adjusted such that when the key K is closed the def 2026The stored charge in the capacitor in steady state of the following circuit is ________ C. 2026A moving coil of galvanometer when shunted with 2 , resistance gives a full scale deflection for a current of 500 mA. When a resistance of 470 , is connected in series it gives a f 2026Two cells of emfs 1 V and 2 V and internal resistance 2 , and 1 , , respectively connected in parallel, gave a current of 1 A through an external resistance. If the polarity of one 2026Refer to the circuit diagram given below. The heat generated across the 6 , resistance in 100 second is 100 J. The value of is _______. (Nearest integer) 2026In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10 V and 5 A , respectively. The least counts of voltm 2026Under steady state condition the potential difference across the capacitor in the circuit is _______ V. 2026 Full Current Electricity list All JEE Main PYQs