MDCAT Preparation MCQs
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in MDCAT
Answer: Low resistance shunt in parallel bypasses excess current.
Answer: Convex mirrors provide a wider field of view.
Answer: V = IR = 2 x 5 = 10 V.
Answer: Ideal voltmeter has infinite resistance to draw no current.
Answer: Resolving power depends on wavelength and numerical aperture.
Answer: Energy is measured in Joules.
Answer: Fringe width = lambda D/d where D is screen distance, d is slit separation.
Answer: All three are equivalent expressions for power.
Answer: Right hand thumb rule gives the field direction.
Answer: Ohm\'s Law: voltage equals current times resistance.
Answer: Ampere (A) is the SI unit of electric current.
Answer: Req = R/n = 4/2 = 2 ohm for equal resistors in parallel.
Answer: EMF is measured in Volts.
Answer: C = epsilon0 A/d depends on area and separation.
Answer: Same current flows through all components in series.
Answer: F = BIL sin theta, maximum at 90 degrees.
Answer: Only transverse waves can be polarized.
Answer: R = rho L/A, directly proportional to length.
Answer: Sum of currents at a junction is zero, based on charge conservation.
Answer: Magnetic force F = qv x B acts only on moving charges.