A. galvanometer
B. voltmeter
C. ammeter
D. AC transformer and DC generator
Correct Answer: AC transformer and DC generator ✔
Last Updated: January 20, 2021
Related MCQs
- A moving coil galvanometer of resistance 100? gives half scale deflection for a current of 20mA. What will be the potential difference across it ?
- Heating a magnet will __________?
- Galvanometer is a very sensitive device with__________?
- When an electron moving with a uniform speed in a vacuum enters a magnetic field in a direction perpendicular to the field the subsequent path of the electron is __________?
- The effective way to increase the sensitivity of a moving coil galvanometer is to__________?
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- While measuring the unknown resistance the help of slide wire bridge a greatest accuracy can be achieved when__________?
- Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________?
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- The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12Ω. Galvanometer resistance is__________?
- The magnetic field strength of solenoid is__________?
- Value of permeability of free space in SI units is__________?
- The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field the orbit will be__________?
- Magnetic flux and flux density are related by__________?
- If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is__________?
- A magnetic compass will be deflected if it is kept near a__________?
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- A galvanometer basically is an instrument used to __________?
- Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always__________?
- A sensitive galvanometer gives full-scale deflection with 100 mV. If the resistance of the galvanometer is 50? the maximum current that can flow through safely is__________?
- In a multi range ammeter as the range increases __________?
- When the coil of the galvanometer is in equilibrium then the deflecting couple is__________?
- n instrument which can measure potential without drawing any current is__________?
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- SI unit of flux density is__________?
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- Which one of the following material is most suitable for making core of an electromagnet ?
- A magnetic field__________?
- Two parallel wires carrying currents in the opposite directions__________?
- What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m2 when the force acting on the wire is 5N ?
- Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called__________?