Basically, the product modulator is
|
(a) An amplifier |
(b) A mixer |
|
(c) A frequency separator |
(d) A phase separator |
Basically, the product modulator is
|
(a) An amplifier |
(b) A mixer |
|
(c) A frequency separator |
(d) A phase separator |
(b) A mixer
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What should be the current in a circular coil of radius 5cm to annul
|
(a) 0.4 A |
(b) 4 A |
(c) 40 A |
(d) 1 A |
Line spectra are due to
|
(a) Hot solids |
(b) Atoms in gaseous state |
|
(c) Molecules in gaseous state |
(d) Liquid at low temperature |
When connected across the terminals of a cell, a voltmeter measures 5V and a connected ammeter measures 10 A of current. A resistance of 2 ohms is connected across the terminals of the cell. The current flowing through this resistance will be
|
(a) 2.5 A |
(b) 2.0 A |
(c) 5.0 A |
(d) 7.5 A |
Which of the following law is used in the Millikan's method for the determination of charge
|
(a) Ampere's law |
(b) Stoke's law |
|
(c) Fleming's left hand rule |
(d) Fleming's right hand rule |
An electron is accelerated through a potential difference of 200 volts. If e/m for the electron be 1.6
coulomb/kg, the velocity acquired by the electron will be
|
(a) 8 |
(b) 8 |
(c) 5.9 |
(d) 5.9 |
The magnetic induction in air at a point 1cm away from a long wire that carries a current of 1A, will be
|
(a) |
(b) 2 |
(c) 3 |
(d) 4 |