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Physics Mcqs — Test 18

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Question 1
Two parallel wires carrying currents in the opposite directions____________________?
Question 2
A magnetic field___________________?
Question 3
Which one of the following material is most suitable for making core of an electromagnet ?
Question 4
The relationship between Tesla and smaller unit Gauss of magnetic induction is given by_________________?
Question 5
The standard vector symbol for flux density is ____________________?
Question 6
An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?
Question 7
n instrument which can measure potential without drawing any current is_____________________?
Question 8
When the coil of the galvanometer is in equilibrium then the deflecting couple is____________________?
Question 9
Which one of the following is not an electromechanical instrument ?
Question 10
In a multi range ammeter as the range increases _____________________?