Current Electricity Physics - Current Electricity

• A
  4 : 9
• ✓
  3 : 2
• C
  9 : 4
• D
  2 : 3

Answer: B.

• A
  the sensitivity of potentiometer is large
• ✓
  no current is drawn from the cell at balance
• C
  no current flows in the wire of potentiometer at balance
• D
  internal resistance of cell is neglected

Answer: B.

• A
  Energy
• B
  Momentum
• ✓
  Charge
• D
  Mass

Answer: C.

• A
  $ \frac{1}{n} $
• B
  $ n $
• C
  $ \frac{1}{n^2} $
• ✓
  $ n^2 $

Answer: D.

• ✓
  $ 0.002~ohm^{-1} $
• B
  $ 0.02~ohm^{-1} $
• C
  $ 50~ohm^{-1} $
• D
  $ 500~ohm^{-1} $

Answer: A.