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At a point sum i=0 in a circuit with on...

At a point `sum i=0` in a circuit with one emf source, then –

A

the resistance of the circuit is zero

B

the point is the junction point

C

the emf of the source is infinity

D

this is not possible

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The correct Answer is:
B
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MOTION-CURRENT ELECTRICITY-EXERCISE -1 (OBJECTIVE PROBLEMS NEET)
  1. Net resitance between X and Y is –

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  2. The equivalent resistance between the terminal point P and Q is 4 Omeg...

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  3. At a point sum i=0 in a circuit with one emf source, then –

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  4. For the following circuits, the potential difference between X and Y i...

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  5. Reading of ideal .ammeter in ampere for the following circuit is –

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  6. The equivalent resistance in series combination is

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  7. A rectangular carbon block has dimensions 1.0 cmxx 1.0 xx50 cm. (i) ...

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  8. The equivalent resistance between points (A) and (B) in the adjoining ...

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  9. Four wires of equal length and of resistance 5ohm each are connected i...

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  10. Five resistance are connected as shown in fig. The effective resistanc...

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  11. In a closed circuit, the vector sum of total e.m.f.s is equal to the s...

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  12. For the following diagram the galvanometer shows zero deflection then ...

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  13. For following circuit the value of total resistance between X an...

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  14. Reading of ammeter is

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  15. In the following circuit the resultant emf between AB is –

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  16. Two cells , each of emf E and internal resistance r, are connected in ...

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  17. A cell of e.m.f (E) and internal resistance (r) is connected in series...

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  18. The terminal potential difference of a cell when short-circuited is (E...

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  19. A storage battery is connected to a charger for changing with a voltag...

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  20. The terminal voltage across a battery of emf E can be

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