Which of the following statements is wrong ? (a) sin2? + cos2? = 1 (b) 1 + tan2? = sec2? (c) sin2? - cos2? = 1 (d) sin2? = 2 sin? cos?

2 Answers  

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A steady current is flowing through a solenoid. If a bundle of soft iron is inserted in the coil, then the magnetic field inside the solenoid (1) increases (2) decreases (3) remains unaffected (4) increases first and then decreases

2 Answers  

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S.I. Unit of temperature represented by -

3 Answers   RRB,

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sir i need chennai RRB previous year question paper. plz send me

2 Answers   Indian Railways, RRB, Southern Railways,

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How many committees of 5 members can be formed from 6 gentlemen and 4 ladies? (1) 120 (2) 252 (3) 10P5 (4) 10C5

1 Answers  

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Sir, Iam Applied in rrb for the posts of Asst: Locco Pilot & Junior Engineer.I want to know about the or question previews to study well.Please Send a reply

2 Answers   BBR, Indian Railways, RRB, Sail,

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Decibel is defined in terms of (1) voltage level (2) power ratio (3) current level (4) None of these

4 Answers   BSNL, GFL,

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how to start shunt moter

5 Answers  

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Dear sir/mam i am preparing for railway jobs in pharmacy profession and i want to know about interview question which asked in railway please give me suggestion my em id is dishasahu@gmail.com

0 Answers  

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RRB Group C Results Allahbad 2017

1 Answers  

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The total cost incurred on the production of a commodity is divided in cost of production materials, labour cost, cost of fixed items and profit in the ratio of 8 : 6 : 4 : 2. If the cost of production materials is Rs. 160, the cost of the commodity is (a) Rs. 480 (b) Rs. 440 (c) Rs. 400 (d) Rs. 360

1 Answers  

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A transformer transform - a.voltage b.current c.power

3 Answers   RRB,

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