Name the three liquids which when tested in the manner shown in the given figure, may cause the magnetic needle to deflect

Which defect of the eye is shown in the figure given below?

Resistance of 6 ohm each are connected in the manner shown in the given figure. With the current 0.5 ampere as show in figure. The potential differnce V_A-V_B is

When a conducting loop of resistance 10 Omega and area 10 cm^2 is removed from an external magnetic field acting normally, the variation of induced current in the loop with time is shown in the figure. Magnitude of the magnetic field applied.

A magnetic field in a certain region is given by bar B = B_0 cos omegathatk and a coil of radius a with resistanc R is placed i the XY-plane with its centre at the origin in the magnetic field as shown in the figure. Find the magnitude and direction of current at (a,0,0) at t = pi//2 omega

When the free ends of the tester are dipped into a solution, the magnetic needle shows deflection. Can you explain the reason ?

Name three metals which are liquids at room temperature.

A homogenous catalytic reaction takes place through the three alternative plots A, B, and C shown in the given figure. Which one of the following indicates the relative ease with which the reaction cant take place?