electric current

mcqspedia.com has 7 Question/Answers about Topic electric current

Living creature that turns itself into living battery is

Living creature that turns itself into living battery is
  • A. star fish
  • B. shark
  • C. eel
  • D. octopus
  • Correct Answer: Option C

Current flowing from higher potential to lower potential is known as

Current flowing from higher potential to lower potential is known as
  • A. electronic current
  • B. protonic current
  • C. current
  • D. conventional current
  • Correct Answer: Option D

Flow of charges in direction of electrons is called

Flow of charges in direction of electrons is called
  • A. current
  • B. electronic current
  • C. conventional current
  • D. photonic current
  • Correct Answer: Option B

If direction of current is from positive to negative, then it is called

If direction of current is from positive to negative, then it is called
  • A. electronic current
  • B. conventional current only
  • C. positronic current
  • D. protonic current
  • Correct Answer: Option B

When current is parallel to magnetic fields, force on conductor is

When current is parallel to magnetic fields, force on conductor is
  • A. zero
  • B. infinite
  • C. 2 times
  • D. same
  • Correct Answer: Option A

If magnetic flux density and current are at right angles, then component of force acting on conductor is

If magnetic flux density and current are at right angles, then component of force acting on conductor is
  • A. BIL cosθ
  • B. BIL sinθ
  • C. BIL tanθ
  • D. BL sinθ
  • Correct Answer: Option B

Semiconductors have electron number density of order

Semiconductors have electron number density of order
  • A. None
  • B. None
  • C. None
  • D. None
  • Correct Answer: Option D