# AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 26 May First Shift Part 3

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Q-10: If voltage across Zener diode is then find out value of maximum resistance in this condition.

Options:

(1)

(2)

(3)

(4)

Answer: (4)

Solutions:

Voltage across

Q-11: A transformer consists of turn in primary coil and turns in secondary coil with the load of. Find out current in the primary coil when the voltage across secondary coil is.

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

Q-12: Find force per unit length at P.

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

Let length of wire element at P is dl.

Magnetic field at B,

Q-13: Find magnetic field at centre if length of side of square loop is.

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions: