|
The magnetism left in the iron after exciting field has been removed is known as
|
|
0
|
221
|
October 17, 2021
|
|
Which of the following is the unit of magnetic flux density?
|
|
0
|
181
|
October 18, 2021
|
|
Substances winch have permeability less than the permeability of ___
|
|
0
|
161
|
October 18, 2021
|
|
The unit of relative permeability is ___
|
|
0
|
205
|
October 18, 2021
|
|
The direction of magnetic lines of force is ___
|
|
0
|
154
|
October 18, 2021
|
|
In order tominimise loss due to hysteresis the ___
|
|
0
|
190
|
October 18, 2021
|
|
In case all the flux from the current in coil 1 links with ___
|
|
0
|
141
|
October 18, 2021
|
|
There is a constant homogeneous magnetic field pointing in ___
|
|
0
|
145
|
October 18, 2021
|
|
Linkage flux per unit current is ___
|
|
0
|
203
|
October 18, 2021
|
|
Reluctance offered by the magnetic circuit ___
|
|
0
|
200
|
October 18, 2021
|
|
When a plane wave propagates in ___
|
|
0
|
155
|
October 18, 2021
|
|
The magnetic field strength of an air-cored coil can be ___
|
|
0
|
158
|
October 18, 2021
|
|
The hysteresis loss is ___
|
|
0
|
238
|
October 18, 2021
|
|
The shape of B-H curve for air gap is___
|
|
0
|
163
|
October 18, 2021
|
|
The coupling between two magnetically coupled coils is ___
|
|
0
|
162
|
October 18, 2021
|
|
Lower the self inductance of ___
|
|
0
|
161
|
October 18, 2021
|
|
A ferromagnetic core subjected to cycles of magetisation will ___
|
|
0
|
211
|
October 18, 2021
|
|
Two parallel wires separated by a distance dare carrying ___
|
|
0
|
130
|
October 18, 2021
|
|
Hard steel is suitable for making permanent magnets because ___
|
|
0
|
305
|
October 18, 2021
|
|
The conductance of electrical circuit is ___
|
|
0
|
167
|
October 18, 2021
|
|
Those magnetic materials are best suited for making armature and ___
|
|
0
|
155
|
October 18, 2021
|
|
If a current carrying conductor is placed in ___
|
|
0
|
145
|
October 18, 2021
|
|
An air gap is usually inserted in magnetic circuits to ___
|
|
0
|
156
|
October 18, 2021
|
|
A ferrite core has less eddy current loss than ___
|
|
0
|
295
|
October 18, 2021
|
|
If the area of hysteresis loop of a material is large, the ___
|
|
0
|
161
|
October 18, 2021
|
|
The relative permeability of a ferromagnetic material is ___
|
|
0
|
142
|
October 18, 2021
|
|
The transformer cores operating at microwave frequency range, are ___
|
|
0
|
218
|
October 18, 2021
|
|
The unit of reluctance is ___
|
|
0
|
158
|
October 18, 2021
|
|
Those materials are well suited for making permanent magnets which have ___
|
|
0
|
179
|
October 18, 2021
|
|
Permanent magnets are normally made of ___
|
|
0
|
208
|
October 18, 2021
|