5555555555
20. When a solenoid is activated, the force that moves the plunger is ________.
(a) an electromagnetic field
(b) a permanent magnetic field
(c) varying voltage
(d) a steady current
| Subject Name : Electrical Engineering |
| Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT |
| Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant |
| Electrical Engineering Books
|
| GATE 2023 Total Info | ENGG DIPLOMA | UGC NET Total Info |
| IES 2023 Total Info | PSUs 2022 Total Info | CSIR UGC NET Total Info |
| JAM 2023 Total Info | M TECH 2023 Total Info | RAILWAY 2022 Total Info |
Related Posts
5555555555 13. An electromagnetic field exists only when there is ________. (a) an increasing current (b) decreasing current (c) voltage (d) current- 5555555555 33. A 220 Ω resistor dissipates 3 W. The voltage is ________. (a) 73.3 V (b) 2.5 V (c) 25.7 V (d) 257 V
- 5555555555 11. A current of 200 µA through a 6.8 kΩ resistor produces a voltage drop of ________. (a) 34.4 V (b) 340 V (c) 13.6 V (d) 1.36 V
- 5555555555 4. When the current through the coil of an electromagnet reverses, the ________. (a) direction of the magnetic field reverses (b) direction of the magnetic field remains unchanged (c) magnetic field expands (d) magnetic field collapses
- 5555555555 25. If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s? (a) 10.5 C (b) 105 C (c) 3.4 C (d) 34 C