Q. What is the current required to light a 60 W incandescent bulb in a domestic supply of 240 V?
1) 0.5 A
2) 0.25 A
3) 1.0 A
4) 5.0 A
Q. Which one of the following correctly represents the SI unit of resistivity?
1) 8#8486;
2) 8#8486; /m
3) 8#8486; - cm
4) 8#8486; - m
Q. The frequency of an alternating current is 3 Hz. It implies that -
1) there are 6 cycles/s
2) there are 3 cycles/s
3) there are 2 cycles/s
4) there is only 1 cycle
Q. Which one of the following is a chemical change?
1) Dissolving sugar in water
2) Melting of ice
3) Crystallization
4) Milk turning sour
Q. Refining of petroleum is carried out using which one of the following techniques?
1) Evaporation
2) Fractional distillation
3) Separating funnel
4) Sublimation
Q. Which one of the following is not a solution?
1) Alloy
2) Milk
3) Air
4) Sugar
Q. The electric field lines from an isolated positively charged conducting sphere are -
1) tangential to the conducting surface
2) at right angles to the conducting surface and toward the center of the sphere
3) at any angle to the conducting surface
4) at right angles to the conducting surface and outwards from the center of the sphere
Q. An electric wire of resistance 50 Ω (ohms) is cut into five equal wires. These wires are then connected in parallel. What is the equivalent resistance of this combination?
1) 2 Ω
2) 10 Ω
3) 0.5 Ω
4) 5 Ω
Q. Which of the following statements correctly explains/explain the existence of a positive force between two electric charges?
1. Both the charges are positive.
2. Both the charges are negative.
3. Both the charges are oppositely charged.
Select the correct answer using the code given below -
1) Only l
2) Only 2
3) Only 1 and 2
4) All 1, 2 and 3
Q. Evaporation from the surface of a given liquid takes place more rapidly when -
1) the temperature is high and the surface area of the liquid is large
2) the temperature is low and the surface area of the liquid is large
3) the temperature is low and the surface area of the liquid is small
4) the temperature is high and the surface area of the liquid is small
IntroductionAre you passionate about sports but don't see yourself as an athlete? Do you find the business side of sports fascinating? A career in sports management could be your winning ticket! This field combines business, sports, and management, offering dynamic roles that go far beyond the field →
Foundation Date: December 8, 1991 Headquarters: The Republic of Belarus Executive Secretaries: Sergei Lebedev Member Countries: 12 Commonwealth of Independent States (CIS) was established on December 8, 1991, and the leaders of the Republic of Belarus, the Russian Federation, and Ukraine signed an a →
In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →
Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →
If you contribute your content to our site. Please mail us your content to editor@onlinegk.net