Home
Class 12
PHYSICS
Statement 1: Both dc and ac can be measu...

Statement 1: Both dc and ac can be measured by a hot wire instrument.
Statement 2: the hot wire instrument is based on the principle of magnetic effect of current.

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

'A' is true and 'R' is false

D

Both 'A' and 'R' are false

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - II|8 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - IA|15 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

Similar Questions

Explore conceptually related problems

Statement 1: N_(2) and NO^(+) are both dia-magnetic. Statement 2: NO^(+) is isoelectronic with N_(2)

Statement -1 : The Doppler effect occurs in all wave motions. because Statement-2 : The Doppler effect can be explained by the principal of superposition of waves.

Statement 1: The magnetic field as magnetic field does no work on the charged particle. Statement 2: force (magnetic) on the wire is int dF=int idveclxxvecB

A wire is bent into the shape shown in fig and the magnetic field is measured at P_1 when the current in the wire is I. The same wire is then formed into the shape shown in the Fig and the magnetic field is measured at point P_2 when the current is again I. If the total length of wire is the same in each case, what is the ratio of B_1//B_2 ?

A : The ammeters and volmetrs used for measuring alternating current and voltages have non-uniform divisons on their scales. R : The instruments used for measuring alternating current and voltage are based on heating effect of current.

A staright wire of length (pi^(2)) meter is carrying a current of 2A and the magnetic field due to it is measured at a point distant 1 cm from it. If the wire is to be bent into a circles and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be

Statement-1: hot soup tastes better than the cold soup. Statement-2: Hot soup spread properly on our tondue due to lower surface tension.

Statement-1 In the arrangement shown, the hoop carries a constant current. This hoop can remain stationary under the effect of magnetic field of the bar magnet Statement-2 When a magnetic dipole is placed in a non-uniform magnetic field. It experiences a force opposite to direction of external magnetic field at its centre

Statement-1: Carbocationic rearrangement is known as electrophilic rearrangement and Statement-2: Carbocations are stabilized by both hyperconjugation and +I effect.

Statement-1 If a positive charge is thrown parallel to a current carrying wire it will be attracted by the wire Statement-2 If a negative charge is thrown antiparallel to a current carrying wire it will be repelled by the wire Statement-3 A current carrying wire can apply to a force on a charge placed near it