ECAT Physics Online Test With Answers

ECAT Physics Online Test

Sr. # Questions Answers Choice
1 Compton was awarded Nobel prize in physics in 1921 1923 1925 1927
2 In the compton's effect, it is found that the wavelength of incident x-rays is greater than the wavelength of scattered x-rays equal to the wavelength of scattered x-rays less than the wavelength of scattered x-rays any one of these
3 Current is measured in volts watt ohm ampere
4 Resistance is measured in volts ampere ohm watt
5 Avo-meter is used of measure the current, voltage voltage, resistance resistance, current current, voltage and resistance
6 A resistance used in galvanometer to make it voltmeter is called shunt resistance high resistance zero resistance none of these
7 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into Voltmeter Avometer Ammeter None of these
8 A resistance used in voltmeter is called shunt resistance high resistance low resistance zero resistance
9 In order to make a voltmeter, high resistance is connected with galvanometer, in perpendicular may be paralled or pendicular series none of these
10 Which is modified form of galvanometer potentiometer battery voltmeter slide wire bridge
11 A voltmeter is used to measure the potential difference current temperature resistance
12 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as modification voltage current resistance
13 A full-scale deflection is obtained in a galvanometer with a current of few ampere volts milliampere ohm
14 The current is measured in volts watt ampere ohm
15 Ammeter is used to measure voltage resistance voltage and current current
16 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called dead beat galvanometer stable galvanometer shunt galvanometer sensitive galvanomter
17 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of ammeter voltmeter galvanometer avo-meter
18 The torque per unit twist of coil is called proportionality constant gravitational constant boltzman constant coupling constant
19 Method "lamp and scale arrangement" used to measure the angle of deflection restoring torque magnetic field strength current
20 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made Sensitive Accurate Stable None of these
21 The angle of deflection of coil can be measured by the one method three method two method none of these
22 A shunt resistance parallel to the galvanometer is used to convert it into avometer millimeter voltmeter none of these
23 In a moving coil galvanometer, the deflecting couple depends upon area of the coil number of turns of coil value of magnetic field all of the above
24 For the conversion of galvanometer into voltmeter, we connect a small resistance in series with galvanometer small resistance in parallel with galvanometer high resistance in parallel with galvanometer high resistance series with galvanometer
25 The working of galvanometer depends upon torque exerted on a current carrying coil in magnetic field electric field gravitational field nuclear field
26 Galvanometer is a device used for the detection of voltage current temperature pressure
27 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon Heating effect of current Chemical effect of current Magnetic effect of current Electromagnetic effect of current
28 To convert galvanometer into ammeter we connect small resistance in parallel with galvanometer small resistance in series with galvanometer high resistance in series with galvanometer high resistance in parallel with galvanometer
29 The galvanometer can be made sensitive if the value of the factor C/BAN is constant small large none of these
30 A galvanometer is an instrument used to measure voltage across a circuit detect current in a circuit measure current flowing through a circuit none of these
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