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plz solve this question from my board paper 2019
Asked by ramandeep.kaur | 05 Mar, 2019, 05:22: PM
V = 3.3 V

Internal resistance = 0.5 Ω

1. The resistance of circuit when key k is open

The resistance of 5 ohms and internal resistance of 0.5 ohms will be considered:

So, R = 5 + 0.5 = 5.5 Ω

2. The current drawn from the cell when key k is open

Current drawn will be

I = V/R = 3.3/ 5.5  =0.6 A

3. The resistance of circuit when key k is closed

Resistors in series are 2 ohms and 3 ohms

So, R = 2 + 3 = 5 ohms

Resistance in parallel,

4. The current in the circuit when key k is closed

Total current = Total voltage/ Resistance = 3.3/3 = 1.1 Ω
Answered by Shiwani Sawant | 05 Mar, 2019, 06:25: PM

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