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