Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
On which principle transformer is based?
Self-inductance
Mutual inductance
Displacement current
None of the above
When an electric lamp, whose resistance is 25 Ω, and a resistor of 5 Ω resistance are connected in series to a 60 V battery.
The current in the circuit is _______.
1 A
2 A
3 A
4 A
If a galvanometer of resistance 25Ω shows full scale deflection for current 10 mA. Then to convert it into 100 V range voltmeter, the required series resistance is,
9975
10025
10000
975
The __________ is said to be equal to its net magnetic moment per unit volume.
magnetism
magnetization
magnetic energy
magnetic dipole.
The sum of deviations of n number of observations measured from 2.5 is 50 . The sum of deviations of the same set of observations measured from 3.5 is -50 . What is the value of n?
50
60
80
100
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