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(i) Find the potential difference betwee...

(i) Find the potential difference between A and B.

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(a) Find the potential difference between A and B (b) A circuit has a section AB as shown. If V_A - V_B = 12 V , find current i . ( c) (i) Find the potential difference between the points A and B (ii) Find current through 25 V cell if points A and B are connected. (d) In the following circuit, calculate (i) Potential difference between points X and Y , when switch S is open. (ii) Current through switch S , when switch S is closed. (iii) Equivalent resistance between A and B . .

(a) Find the potential difference between A and B (b) Calculate the current flowing in the circuit and the potential difference across terminals of each cell. ( c) Calculate the potential difference across terminals of each cell. (d) Calculate the potential difference between A and B ( e) Calculate the current in each resistor and terminal potential difference across each cell. (f) Calculate potential difference across each cell. (g) A battery of 6 cells each of emf 2 V and internal resistance 0.5 Omega is being changed by DC mains of emf 220 V by using an external resistance of 10 Omega . Calculate. (i) the charging current (ii) the potential difference across the battery. .

Knowledge Check

  • The potential difference between A and B is .

    A
    9 V
    B
    15 V
    C
    10 V
    D
    20 V

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