Related Questions

'Stress-induced amnesia strikes the patient apparently without warning and the memory loss can be as complete as is induced by physical trauma.' which correction should be made to this sentence?
A replace 'strikes' with 'contracts'
B replace 'is' with 'that'
C remove 'apparently'
D change 'by' to 'in'
According to Fleming's right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of
A Motion of conductor
B Lines of force
C Either of the above
D None of the above
The stress induced in a body, when suddenly loaded, is _________ the stress induced when the same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
If current in a conductor increases then according to Lenz's law self-induced voltage will
A Aid the increasing current
B Tend to decrease the amount of current
C Produce current opposite to the increasing current
D Aid the applied voltage
Resistance of an electrical conductor is proportional to its (where, L = length and A = cross-sectional area of the conductor)
A A
B L
C A2
D Both A & B
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be
A Zero
B BLI
C B2LI
D BLI2
A train of length l, traveling at a constant velocity, passes a pole in t seconds .If the same train traveling at the same velocity passes a platform in 3t seconds, then the length of the platform is-------
A 0.5l
B l
C 1.5l
D 2l
As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it
A Lies perpendicular to the magnetic flux
B Lies in a magnetic field
C Cuts magnetic flux
D Moves parallel to the direction of the magnetic field
The magnitude of the induced e.m.f. in a conductor depends on the
A Flux density of the magnetic field
B Amount of flux cut
C Amount of flux linkages
D Rate of change of flux-linkages
In triangle PQR length of the side QR is less than twice the length of the side PQ by 2 cm. Length of the side PR exceeds the length of the side PQ by 10 cm. The perimeter is 40 cm. the length of the smallest side of the triangle PQR is:
A 6 cm
B 8 cm
C 9 cm
D 10 cm

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