AIIMS (All India Institute of Medical Sciences) Physics: Questions 472  474 of 500
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Question number: 472
» Electrostatics » Gauss's Law
Appeared in Year: 2001
Question
Electric charge is uniformly distributed along a long straight wire of radius 1 mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1 m symmetrically encloses the wire as shown in fig. The total flux passing through the cylindrical surface is –
[MP]
Choices
Choice (4)  Response  

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Question number: 473
» Electrostatics » Electric Field Due to a Dipole
Appeared in Year: 1997
Question
The electric dipole is placed along the x  axis at the origin O. A point P is at a distance of from this origin such that OP makes an angle with the x  axis. If the electric field at P makes an angle with the x  axis, the value of would be – [MP PMT]
Choices
Choice (4)  Response  

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b. 


c. 


d. 


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Question number: 474
» Current Electricity » Electric Current
Question
A current of exists in a copper wire of cross  section . Assuming each copper atom contributes one free electron. Calculate the drift speed of the free electrons in the wire. The density of copper is and atomic mass .
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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