Physics-Objective Related Question Answers
426. A good conductor of electricity?
Mercury
427. The capacity of an electric field to do work on an electric charge?
Electric potential
428. Pure water is a bad conductor of electricity because pure water does not dissociate into?
Ions
429. Electro magnetism was discovered by?
Hans Christian Oersted
430. Positively charged particles lose?
Electrons
431. Negatively charged particles gain?
Electrons
432. Electricity is divided into two?
(1) Static electricity (2) Dynamic electricity
433. The electric charge built upon a material as a static mode?
Static electricity
434. The type of electric charge flows from one point to another through the conductors, cables etc?
Dynamic electricity
435. Dynamic electricity are of two types?
(a) Alternating current (AC) (b) Direct current (DC)
436. Electricity supplying for domestic use is?
Alternating Current
437. Unidirectional flow of electric charge?
Direct Current
438. DC is formerly known as?
Galvanic current
439. Batteries, solar cells etc produce?
DC
440. The device used to convert AC to DC?
Rectifiers
441. The device used to convert DC to AC?
Oscillator
442. The device which conducts DC but blocks AC is?
Inductor
443. When one coulomb charge is carried from one place to another, the work done is called?
Electric potential difference
444. SI unit of electrical potential difference is?
Volt
445. The e.m.f or potential difference measured in volt is called?
Voltage
446. Property of some crystals to develop an electromotive force when subjected to mechanical stress is called?
Piezo Electricity
447. Quartz Crystal in watches work on the principle of?
Piezo Electricity
448. Piezo Electricity was discovered by?
Pierre Curie and Jacques Curie
449. The property of a material due to which it opposes the flow charge through it?
Resistance
450. Unit of resistance is?
Ohm (n)
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