Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

  Parallel.
 Inclined at 30°.
 Perpendicular.
 Inclined at 60°.

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Digital Electronics
Statement(A): 2’s complement arithmetic is preferred in digital computers. Statement(R):The Hardware required to obtain the 2’s complement of a number is simple.

 Both A & R are true and R is the correct explanation of A
 Both A & R are true but R is not the correct explanation of A
 A is false but R is true
 A is true but R is false

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