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