Major Competitive Exams

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Q. What is the effect of increasing the number of turns in a coil on the magnetic field produced?
  • A. Increases
  • B. Decreases
  • C. No effect
  • D. Reverses
Q. What is the effect of increasing the number of turns in a coil on the magnetic field strength produced by it? (2022)
  • A. Increases the field strength
  • B. Decreases the field strength
  • C. No effect
  • D. Reverses the field direction
Q. What is the effect of increasing the number of turns in a solenoid on its magnetic field strength? (2022)
  • A. Decreases the field strength
  • B. Increases the field strength
  • C. No effect
  • D. Reverses the field direction
Q. What is the effect of increasing the number of turns in a solenoid on the magnetic field inside it?
  • A. Magnetic field decreases
  • B. Magnetic field remains constant
  • C. Magnetic field increases
  • D. Magnetic field becomes zero
Q. What is the effect of increasing the object distance on the size of the image formed by a convex lens?
  • A. Image size increases
  • B. Image size decreases
  • C. Image size remains constant
  • D. Image size becomes zero
Q. What is the effect of increasing the permittivity of the medium on the electric field due to a point charge?
  • A. Electric field increases
  • B. Electric field decreases
  • C. Electric field remains the same
  • D. Electric field becomes zero
Q. What is the effect of increasing the plate area of a capacitor on its capacitance?
  • A. Capacitance increases
  • B. Capacitance decreases
  • C. Capacitance remains the same
  • D. Capacitance becomes zero
Q. What is the effect of increasing the plate area of a parallel plate capacitor on its capacitance? (2022)
  • A. Increases capacitance
  • B. Decreases capacitance
  • C. No effect
  • D. Capacitance becomes zero
Q. What is the effect of increasing the plate area of a parallel plate capacitor?
  • A. Capacitance decreases
  • B. Capacitance increases
  • C. Capacitance remains the same
  • D. Capacitance becomes zero
Q. What is the effect of increasing the pressure of a gas at constant temperature on its RMS speed?
  • A. Increases RMS speed
  • B. Decreases RMS speed
  • C. No effect on RMS speed
  • D. Depends on the gas
Q. What is the effect of increasing the pressure of a gas at constant volume on its RMS speed?
  • A. Increases RMS speed
  • B. Decreases RMS speed
  • C. No effect on RMS speed
  • D. Depends on the gas
Q. What is the effect of increasing the pressure on the equilibrium of the reaction: 2N2(g) + 3H2(g) ⇌ 2NH3(g)?
  • A. Shifts to the left
  • B. Shifts to the right
  • C. No effect
  • D. Increases the rate of reaction
Q. What is the effect of increasing the pressure on the rate of a reaction involving gaseous reactants?
  • A. Rate decreases
  • B. Rate increases
  • C. No effect
  • D. Depends on the reaction
Q. What is the effect of increasing the radius of a circular loop carrying current on the magnetic field at its center?
  • A. It increases the magnetic field
  • B. It decreases the magnetic field
  • C. It has no effect
  • D. It reverses the direction of the magnetic field
Q. What is the effect of increasing the radius of a circular loop on the magnetic field at its center?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. What is the effect of increasing the radius of a spherical Gaussian surface enclosing a fixed charge?
  • A. Electric field increases.
  • B. Electric field decreases.
  • C. Electric field remains constant.
  • D. Electric field becomes zero.
Q. What is the effect of increasing the resistance in a circuit while keeping the voltage constant? (2019)
  • A. Current increases
  • B. Current decreases
  • C. Current remains the same
  • D. Voltage increases
Q. What is the effect of increasing the resistance in a series AC circuit?
  • A. Increases current
  • B. Decreases current
  • C. No effect
  • D. Increases voltage
Q. What is the effect of increasing the resistance in a series RLC circuit on the Q factor?
  • A. Increases Q factor
  • B. Decreases Q factor
  • C. No effect
  • D. Doubles Q factor
Q. What is the effect of increasing the resistance in an AC circuit on the overall current?
  • A. Increases current
  • B. Decreases current
  • C. No effect
  • D. Doubles current
Q. What is the effect of increasing the resistance in the circuit of a potentiometer?
  • A. Increases the current
  • B. Decreases the current
  • C. No effect on current
  • D. Increases the emf
Q. What is the effect of increasing the resistance of the potentiometer wire on the potential gradient?
  • A. It increases the potential gradient
  • B. It decreases the potential gradient
  • C. It has no effect
  • D. It depends on the voltage applied
Q. What is the effect of increasing the size of the halogen atom on the bond strength of haloalkanes? (2021)
  • A. Increases bond strength
  • B. Decreases bond strength
  • C. No effect
  • D. Increases reactivity
Q. What is the effect of increasing the size of the halogen atom on the reactivity of haloalkanes?
  • A. Increases reactivity
  • B. Decreases reactivity
  • C. No effect
  • D. Depends on the solvent
Q. What is the effect of increasing the size of the halogen in haloalkanes on the bond strength?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Varies randomly
Q. What is the effect of increasing the size of the halogen in haloalkanes on the reactivity? (2023)
  • A. Increases reactivity
  • B. Decreases reactivity
  • C. No effect
  • D. Reactivity depends on the solvent
Q. What is the effect of increasing the slit width in a double-slit experiment on the interference pattern?
  • A. Fringe width increases
  • B. Fringe width decreases
  • C. Fringe visibility increases
  • D. Fringe visibility decreases
Q. What is the effect of increasing the slit width in a single-slit diffraction experiment? (2021)
  • A. Fringe width increases
  • B. Fringe width decreases
  • C. No effect on fringe width
  • D. Fringe pattern disappears
Q. What is the effect of increasing the slit width in single-slit diffraction?
  • A. Increases the width of the central maximum
  • B. Decreases the width of the central maximum
  • C. No effect on the central maximum
  • D. Increases the intensity of the central maximum
Q. What is the effect of increasing the speed of a charged particle moving in a magnetic field?
  • A. Increases the magnetic force
  • B. Decreases the magnetic force
  • C. No effect on the magnetic force
  • D. Reverses the direction of the force
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