A) Electric field B) Magnetic Field C) Gravitational Field D) Nuclear Field
A) Farad B) Henry C) Tesla D) Weber
A) Weber B) Gauss C) Tesla D) Henry
A) South pole B) North pole C) West pole D) East polr
A) Enter the S pole B) Cross one another C) Emerge from the N pole D) Form closed loops
A) Poles B) Middle C) Faraway D) Sides
A) centre outward B) S to N C) N to S D) No where
A) Uniform Field B) Zero field C) Weak field D) Strong field
A) Natural magnet B) Permanent magnet C) Electromagnet D) Iodestone
A) Big & Small B) Ac and DC C) Permanent & Temporary D) Hot and Cold
A) A compass needle B) a coil with soft iron core carrying current C) Iodestone D) Horse shoe steel magnet
A) current is switched off B) core is heated C) crane is lifted D) iron is painted
A) Neodymium magnet B) soft iron nail inside a live solenoid C) Iodestone D) Steel bar magnet
A) Soft iron B) Aluminium C) Steel D) Copper
A) straight lines B) parallel lines C) concentric circles D) radial lines
A) In the central hole B) Within the core C) Everywhere D) Oitside the ring
A) Iron filings B) Sand C) Water D) Salt
A) The resultant field is zero B) Charge is zero C) Current is maximum D) The field is maximum
A) Decreases with distance B) Is constant C) Increases with distance D) Is zero
A) Hydrometer B) The electric bell C) Thermometer D) Barometer
A) Direction B) Temperature C) Time D) Pressure
A) Springs B) Heaters C) Electromagnets D) Lasers
A) Data B) Heat C) Water D) Light
A) Candle B) Generator C) Convex lens D) Thermos flask
A) strong magnetic fields B) X-rays only C) Ultra-violet light D) Sound only
A) Voltage is alternating B) Length varies C) Resistance doubles D) Temperature remains constant
A) R= I/V B) R = V/I C) I= VR D) V= I/R
A) 3 A B) 0.33 A C) 48 A D) 8 A
A) 0.2 V B) 12 V C) 5 V D) 20 V
A) 72 Ω B) 0.125 Ω C) 8 Ω D) 27 Ω
A) AL/R B) RA/L C) R/AL D) RL/A
A) Siemens B) Ohm-metre C) Ohm per metre D) Ohm
A) 0.0034 Ω B) 0.34 Ω C) 0.034 Ω D) 3.4 Ω
A) 200 Ω B) 20 Ω C) 2 Ω D) 0.2 Ω
A) Area B) The material and temperature C) Length D) Shape
A) 1.6 × 10⁻⁶ Ω m B) 6.4 × 10⁻⁶ Ω m C) 1.6 × 10⁻⁴ Ω m D) 1.6 × 10⁻⁵ Ω m
A) R/L B) ρ² C) 1/ρ D) ρ
A) Ω m B) S C) Ω D) S/m
A) IR B) V/R C) 1/R D) R
A) 5 S B) 0.5 S C) 20 S D) O.2 S
A) R₁ + R₂ + R₃ B) The average C) 1/R₁ + 1/R₂ + 1/R₃ D) R₁R₂/(R₁ + R₂)
A) 10 Ω B) 1 Ω C) 0.97 Ω D) 30 Ω
A) Power B) Current C) Voltage D) Resistance
A) 6 Ω B) 36 Ω C) 2 Ω D) 18 Ω
A) 2 A B) 3 A C) 6 A D) 0.5 A
A) R = R₁R₂ B) R = R₁ + R₂ C) R = R₁ − R₂ D) 1/R = 1/R₁ + 1/R₂
A) 12 Ω B) 3 Ω C) 6 Ω D) 36 Ω
A) 2 Ω B) 9 Ω C) 4.5 Ω D) 18 Ω
A) Power B) Charge C) Current D) Voltage
A) 3A B) 12 A C) 5A D) 2A
A) 2 Ω B) 9 Ω C) 13 Ω D) 6 Ω
A) 2 A B) 6 A C) 12 A D) 2.4 A
A) 3 A B) 6 A C) 1 A D) 2 A
A) 20 Ω B) 15 Ω C) 10 Ω D) 25 Ω
A) Joule B) Ampere C) Volt D) Watt
A) V/It B) I²/t C) VIt D) VI/t
A) 300 J B) 600 J C) 60 J D) 6000 J
A) 90 J B) 120 J C) 12 J D) 360 J
A) 180 A B) 0.25 A C) 14400 A D) 4A
A) 1 kWh B) 100 kWh C) 0.1 kWh D) 10 kWh
A) decomposition of an electrolyte by electric current B) Cooling of a liquid C) heating of a solid D) Magnetization of Iron
A) calorimeter B) Ammeter C) electrolytic cell D) Rheostat
A) A magnet B) A lens C) A DC source D) A thermometer
A) Ammeter B) Positive terminal C) Negative terminal D) Electrolyte
A) Anode B) Neither electrodes C) Cathode D) Both electrodes
A) Electrolyte surface B) Cathode C) Container wall D) Anode
A) Positive terminal B) Negative terminal C) Ammeter D) Rheostat
A) Cathode B) Neither electrodes C) Both electrodes D) Anode
A) Electrons B) Positively charged ions C) Negatively charged ions D) Neutral atoms
A) Cu²⁺ B) Cl⁻ C) Na⁺ D) H⁺
A) Cl⁻ B) OH⁻ C) SO₄²⁻ D) Ag⁺
A) conducts current in solution or molten state and is decomposed by it B) conducts without decomposing C) Never conducts D) Is always a metal
A) Volume of electrolyte B) Temperature of electrolyte C) Size of electrode D) Quantity of electricity passed
A) M= Z/it B) M = Zi/t C) M = ZIt D) M = Z +it
A) A/s B) C/g C) g/mol D) Kg/C
A) 6.35 g B) 0.635 g C) 0.3175 g D) 1.27 g
A) Volumes B) Equivalent masses C) Melting points D) Densities
A) 6.02 × 10²³ per mol B) 9650 C/mol C) 96500 C/mol D) 1.6 × 10⁻¹⁹ C
A) 96500C B) 193000 C C) 289500 C D) 48250 C
A) 54 g B) 108 g C) 27 g D) 216 g
A) 3216 s B) 804 s C) 4825 s D) 1608 s
A) 1.0 V B) 3.0 V C) 2.0 V D) 1.5 V
A) Leclanche cell B) Lead-acid accumulator C) Daniel cell D) Simple voltaic cell
A) 1.0 V B) 2.0 V C) 3.0 V D) 1.5 V
A) shaking it B) adding water C) passing current through it in the opposite direction D) heating it
A) electroplating B) extraction of reactive metals C) electrorefining of metals D) fractional distillation of crude oil
A) cathode B) electrolyte C) anode D) container
A) electrolyte B) cathode C) anode D) inert
A) heat B) electric charge and energy in an electric field C) magnetic flux D) resistance
A) a single wire B) two conducting plates separated by an insulator C) a coil on an iron D) two insulators separated by a metal
A) Plate area decreases B) Plate separation increases C) Plate area increases D) dielectric is removed
A) 5 µC B) 0.5 µC C) 50 µC D) 2 µC
A) 10⁻³ F B) 10⁻⁹ F C) 10⁻⁶ F D) 10⁻¹² F
A) Oil B) Paper C) Air D) Mica
A) Producing light B) Tuning radio circuits C) Heating D) Rectifying
A) 1/C = 1/C₁ + 1/C₂ + 1/C₃ B) C = C₁ + C₂ + C₃ C) C = C₁C₂C₃ D) C = C₁ − C₂
A) 3 µF B) 12 µF C) 36 µF D) 6 µF
A) Charge B) Voltage C) Energy D) Capacitance
A) ½C²V B) ½CV² C) CV² D) QV²
A) 0.005 J B) 0.05 J C) 5 J D) 0.5 J |