<<= Back
Next =>>
You Are On Question Answer Bank SET 1986
99301. The type of electric charge flows from one point to another through the conductors, cables etc?
Answer: Dynamic electricity
99302. Dynamic electricity are of two types?
Answer: (a) Alternating current (AC) (b) Direct current (DC)
99303. Electricity supplying for domestic use is?
Answer: Alternating Current
99304. Unidirectional flow of electric charge?
Answer: Direct Current
99305. DC is formerly known as?
Answer: Galvanic current
99306. Batteries, solar cells etc produce?
Answer: DC
99307. The device used to convert AC to DC?
Answer: Rectifiers
99308. The device used to convert DC to AC?
Answer: Oscillator
99309. The device which conducts DC but blocks AC is?
Answer: Inductor
99310. When one coulomb charge is carried from one place to another, the work done is called?
Answer: Electric potential difference
99311. SI unit of electrical potential difference is?
Answer: Volt
99312. The e.m.f or potential difference measured in volt is called?
Answer: Voltage
99313. Property of some crystals to develop an electromotive force when subjected to mechanical stress is called?
Answer: Piezo Electricity
99314. Quartz Crystal in watches work on the principle of?
Answer: Piezo Electricity
99315. Piezo Electricity was discovered by?
Answer: Pierre Curie and Jacques Curie
99316. The property of a material due to which it opposes the flow charge through it?
Answer: Resistance
99317. Unit of resistance is?
Answer: Ohm (n)
99318. Conductivity is inversely proportional to?
Answer: Resistance
99319. Unit of conductivity is?
Answer: Siemens
99320. The metal having lowest resistance?
Answer: Silver
99321. The instrument used to control the resistance?
Answer: Rheostat
99322. Nichrome is used as heating element in many appliances because of?
Answer: High resistivity
99323. Super conductivity was discovered by?
Answer: Kamerlingh Onnes
99324. At very low temperature, super conductivity possesses?
Answer: Zero resistance
99325. A super conductor above 100 K?
Answer: Ceramics
99326. Fuseis used to avoid?
Answer: Overloading of current in electric circuit
99327. Fuse is made from an alloy of?
Answer: Lead and Tin
99328. Fuse has?
Answer: low melting point and high resistivity
99329. When a charged body is connected to the earth it 'gets neutralised. It is called?
Answer: Earthing
99330. Colour of positive wire in domestic circuits is?
Answer: Red/Brown
99331. Colour of Neutral wire in domestic circuits is?
Answer: Black/Blue
99332. Colour of earth wire in domestic circuits is?
Answer: Green
99333. A number of cells connected together are called?
Answer: Battery
99334. A source of emf containing two or more cells is called?
Answer: A battery
99335. Rechargeable batteries like mobile phones, torches uses?
Answer: Nickel and Cadmium
99336. The negative electrode in a dry cell is?
Answer: Cathode eg: zinc
99337. The positive electrode in a dry cell is?
Answer: Anode eg: carbon rod
99338. Cell was first invented by?
Answer: Alessandro Volta
99339. Cell is otherwise known as?
Answer: Voltaic Cell
99340. Dry cell was invented by?
Answer: Carl Gassner
99341. In primary cell, chemical energy is converted into?
Answer: Electrical energy eg : Daniel cell; Dry cell etc
99342. Potential difference measured in volt is called?
Answer: Voltage
99343. The electrical potential for a source in a circuit is called?
Answer: EMF
99344. The emf of a voltaic cell?
Answer: 1 volt
99345. Emf of mercury cell?
Answer: 1.35 volt
99346. The emf of a dry cell?
Answer: 1.5 volt
99347. Voltage of a torch cell?
Answer: 1.5 volt
99348. Emf of Lithium ion battery?
Answer: 3.6 volt
99349. The rate of production of electrical energy per unit time?
Answer: Electric power
99350. Electricity supplied for domestic use is?
Answer: Alternating Current (AC)
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions
Question ANSWER With Solution