A) Watts per metre ( W/m) B) Newton per metre (N/m) C) Newton per Coulombs ( N/C) D) Joules per metre (J/m)
A) Centre B) Radially inwards C) Sideways D) Radially outward
A) Centre B) Sideways C) Radially outward D) Radially inwards
A) F = qE B) F = mE C) F= KQ2/r2 D) F = KQ/r
A) E = -dF/dr B) E = dV/dr C) E = -dr/dV D) E = -dV/dr
A) Dynamos B) A device used to store electrical energy in an electric field. C) A device for generating current D) For generating alternating current
A) Ampere B) Joules C) Farad D) Newton
A) It is doubled B) It is constant C) It decreases D) It increases
A) Force B) Energy C) Charge D) Voltage
A) 7μF B) 5μF C) 6μF D) 12μF
A) Electrolyte B) Cathode C) Anode D) Non electrolyte
A) Positively charged ions B) Negatively charged ions C) Neutral ions
A) Negatively charged ions B) Positively charged ions C) Neutral ions
A) Charge on one plate to the potential difference between the plates B) Potential difference to the charge on one plate C) Potential difference to the charge on both plates D) Charge on both plates to the potential difference
A) 1 μF B) 0.5 μF C) 11 μF D) 36 μF
A) 11 μF B) 1 μF C) 0.5 μF D) 36 μF
A) The charge on the plates B) The distance between the plates C) The area of the plates D) The potential difference across the plates
A) 0.2 V B) 5 V C) 20 V D) 12 V
A) Energy stored B) Charge C) Capacitance D) Voltage
A) Both B) Alternating current C) Neither D) Direct current
A) Both B) Neither C) Direct current D) Alternating current
A) 1 × 10⁻⁴ N B) 4 × 10⁻³ N C) 1 × 10⁻³ N D) 2 × 10⁻³ N
A) 1.5 × 10³ N/C B) 6 × 10³ N/C C) 2 × 10³ N/C D) 18 × 10³ N/C
A) 18 × 10³ N/C B) 4.5 × 10³ N/C C) 9 × 10⁶ N/C D) 9 × 10³ N/C
A) E = kQ²/r² B) E = kQ/r C) E = kQ²/r D) E = kQ/r²
A) The potential per unit charge B) The charge per unit force C) The force per unit charge D) The work done per unit charge
A) Intersect each other B) Start from positive charge and end at negative charge C) Form closed loops D) Start from negative charge and end at positive charge
A) Two equal negative charges B) A single charge C) Two equal positive charges D) Two equal and opposite charges separated by a small distance
A) W = V/q B) W = q²V C) W = q/V D) W = qV
A) kQ²/r B) kQ/r C) kQ²/r² D) kQ/r²
A) 4.5 × 10³ V B) 13.5 × 10³ V C) 27× 10³ V D) 9 × 10³ V
A) The heating of a substance by electric current B) The melting of a substance by electric current C) The production of electricity from a chemical reaction D) The chemical decomposition of a compound by passing an electric current through it
A) Daniel Cell B) Galvanic cell C) Voltaic cell D) Electrolytic cell
A) Electrolyte B) Cathode C) Anode D) Salt bridge
A) Cathode B) Anode C) Electrolyte D) Salt bridge
A) Both electrode B) Cathode C) Neither electrode D) Anode
A) Cathode B) Anode C) Neither D) Both
A) Electrode B) Insulator C) Conductor D) Electrolyte
A) Sugar solution B) Sodium Chloride solution C) Acetic acid D) Carbonic acid
A) Sugar solution B) Copper sulphate C) Hydrochloric acid D) Carbonic acid
A) Directly proportional to the square of the charge passed B) Inversely proportional to the quantity of charge passed C) Directly proportional to the quantity of charge passed D) Independent of the charge passed
A) Proportional to their chemical equivalent weights B) Proportional to their atomic numbers C) Equal D) Inversely proportional to their chemical equivalent weights
A) Q = It B) Q = I/t C) Q = I²t D) Q = t/I
A) 600 C B) 300 C C) 10 C D) 120 C
A) 7200 C B) 900 C C) 1800 C D) 3600 C
A) The mass deposited by 1 Coulomb of charge B) The charge required to deposit 1 gram of substance C) The mass deposited by 1 Ampere of current D) The mass deposited by 1 Faraday of charge
A) Cathode B) Both electrodes C) Anode D) Neither electrodes
A) Cathode B) Anode C) Neither electrodes D) Both electrodes
A) A gas is deposited on another metal B) A metal is deposited on another metal C) A non-metal is deposited on another metal D) A metal is removed on another metal
A) 9.525 g B) 3.175 g C) 6.350 g D) 1.588 g |