Computer Programming MCQs — Test 163
Page 1 of 3
Question 1
For electroplating we use_________________?
Question 2
Energy stored in a magnetic field is given by______________?
Question 3
If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________?
Question 4
The only difference between construction of D.C generator and A.C generator is that of_______________?
Question 5
The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core_______________?
Question 6
A metal rod of 25 cm length is moving at a speed of 0.5/sec in direction perpendicular to 0.25T magnetic field. Emf produced in the rod is_____________?
Question 7
Non inductive resistances are used in decreasing______________?
Question 8
An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?
Question 9
For long distance transmission the transformer used is_____________?
Question 10
Which one of the following devices does not function like an electric motor ?