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