Home⇒ Engineering⇒
Basic electricity
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ The conductivity of a super-conductor is Infinite [other wrong options] [Discuss in forum] |
| Q2 ⇒ The fuse-wire is made of Lead-tin alloy [other wrong options] [Discuss in forum] |
| Q3 ⇒ The electric current in a liquid is due to the
flow of Negative and positive ions both [other wrong options] [Discuss in forum] |
| Q4 ⇒ The thermal speed of electrons is of the order of 106 m/s [other wrong options] [Discuss in forum] |
| Q5 ⇒ Electric current is a quantity Scalar [other wrong options] [Discuss in forum] |
| Q6 ⇒ How may 200 W/220 V incandescent lamps connected in series would consume the same total power as a single 100 W/220 V
incandescent lamp? 2 [other wrong options] [Discuss in forum] |
| Q7 ⇒ The quantity in electricity analogous to friction
in linear mechanical motion is Resistance [other wrong options] [Discuss in forum] |
| Q8 ⇒ The electrons revolve around the nucleus with high velocity. The
force which acts against the centrifugal force and keeps the electrons
in their orbits is electrostatic force of attraction. [other wrong options] [Discuss in forum] |
| Q9 ⇒ What is converted into heat when current is
set up through a conductor ? Electric energy [other wrong options] [Discuss in forum] |
| Q10 ⇒ Seebeck effect is inverse of Peltier effect [other wrong options] [Discuss in forum] |
| Q11 ⇒ The thermocouple can not act as A.C. generator [other wrong options] [Discuss in forum] |
| Q12 ⇒ What is the nature of graph between temperature
and thermoelectric power ? Hyperbola [other wrong options] [Discuss in forum] |
| Q13 ⇒ Which of the following is not reversible ? Joule's effect [other wrong options] [Discuss in forum] |
| Q14 ⇒ The dimensions of the emf of a source of
current are that of Potential [other wrong options] [Discuss in forum] |
| Q15 ⇒ What is the name of graph between temperature
and thermo emf. ? Parabola [other wrong options] [Discuss in forum] |
| Q16 ⇒ The unit of Peltier coefficient is JC-1 [other wrong options] [Discuss in forum] |
| Q17 ⇒ What is thermoelectric power ? It is the rate
of change of thermo emf with Temperature [other wrong options] [Discuss in forum] |
| Q18 ⇒ The Thomson coefficient for lead is Zero [other wrong options] [Discuss in forum] |
| Q19 ⇒ The thermo electric power at the neutral
temperature is Zero [other wrong options] [Discuss in forum] |
| Q20 ⇒ As the temperature of hot junction increases,
the thermo emf : May increase or decrease [other wrong options] [Discuss in forum] |
| Or |