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STATEMENT 1: The current density vec J a...

STATEMENT 1: The current density `vec J` at any point in ohmic resistor is in direction of electric field `vec E` at that point .
STATEMENT 2: A point charge when released from rest in a region having only electrostatic field always moves along electric lines of force.

A

Statement-1 is true, Statement-2: is true, Statement-2 is a correct explanation for Statement-1.

B

Statement-1 is true, Statement-2: is true, Statement-2 is NOT a correct explanation for Statement-1.

C

Statement-1 is true but statement-2 is false

D

Statement-1 is false, Statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
C

From relation `vec(J)= sigma vec(E)`, the current density `vec(J)` at any point in the ohmic resistor is in direction of electric field `vec(E)` at that point. In space having non-uniform electric field, charge released from rest may not move along ELOF. hence statement 1 is true while statement-2 is false.
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RESONANCE ENGLISH-CURRENT ELECTRICITY-Exercise
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  2. For the same potential difference, a potentiometer wire is replaced by...

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  3. If the current in a potentiometer increases, the position of the null ...

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  4. In a potentiometer wire, whose resistance in 0.5 ohm//m, a current of ...

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  5. The potentiometer wire 10m long and 20 ogm resistance is connected to ...

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  6. The length of a potentiometer wire is 10m and a potential difference o...

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  7. The potential gradient of potentiometer is 0.2 "volt"//m. A current of...

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  8. The emf of a standard cell is 1.5 volt and its balancing length is 7.5...

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  9. The resistance of a galvanometer coil is R. What is the shunt resistan...

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  10. For measurement of potential difference, potentiometer is preferred in...

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  11. Resistivity of potentiometer wire is 10^(-7)Omega-m and its area of cr...

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  12. In electrolysis the mass deposited on an electrode is directly proport...

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  13. An ammeter and a voltmeter are joined in series to a cell. Their readi...

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  14. The resistanca of an ammeter is 13Omega and its scale is graduated for...

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  15. Three resistances P, Q, R each of 2Omega and an unknown resistance S f...

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  16. In the circuit of figure A1 and A2 are ideal ammeters. Then the readin...

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  17. There is a voltmeter in a circuit. In order to triple its range, the r...

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  18. Sensitivity of a potentiometer can be incresed by

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  19. STATEMENT 1: The current density vec J at any point in ohmic resistor ...

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  20. Statement-1 : In a Meter Bridge experiment, null point for an unknown ...

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