Electromagnetic Induction & Alternating Currents (AIIMS (All India Institute of Medical Sciences) Physics): Questions 44  48 of 51
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Question number: 44
» Electromagnetic Induction & Alternating Currents » Electromagnetic Induction
Question
A rod of magnetic material having dimension is subjected in magnetizing field of then a magnetic moment of is induced in it. Therefore magnetic induction in rod is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 45
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 1995
Question
Dimension of a rectangular coil is . Number of turns in coil is 60. It is rotating about its one of the diameter in an uniform magnetic field of , with the speed 1800 r. p. m. the maximum induced emf is – [RPMT]
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  113 V 

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Question number: 46
» Electromagnetic Induction & Alternating Currents » Induced EMF and Current
Appeared in Year: 1998
Question
Two coil have a mutual inductance . The current changes in first coil according to equation , where and . The maximum value of induced emf in second coil is – (AIPMT)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 47
» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer
Appeared in Year: 2003
Question
A generator produces a voltage where V is in volts and in second. The frequency and r. m. s voltage are – [RPMT]
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 48
» Electromagnetic Induction & Alternating Currents » Alternating Currents
Question
Alternating voltage is applied across the resistance . The rms value of current is equal to –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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