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Recent questions tagged electricity and magnetism
+1
vote
1
answer
Electrical resistivities of some substances, in ohm-meter, at 20°C are given as follows :
asked
Apr 4, 2019
in
Class 10
by
kratos
classification of elements and periodicity in properties
electricity and magnetism
cbse
csat
electricity
class-10
+3
votes
1
answer
A fluorescent tube is preferred to an electric bulb because
asked
Mar 9, 2019
in
Class 12
by
kratos
electricity and magnetism
thermionic emission
csat
radioactivity
electric current and its effects
class-7
icse
general scince
class-10
alternating current
class-12
+2
votes
1
answer
Explain the term "Electro-weak Forces".
asked
Mar 3, 2019
in
Physics
by
kratos
mechanical properties of solids
electricity and magnetism
waves
cbse
csat
class-11
jee
jee mains
particle physics
states of matter
+3
votes
1
answer
Consider the following statements regarding a motor car battery: 1. The voltage is usually 12 V.
asked
Feb 19, 2019
in
Mathematics
by
kratos
electricity and magnetism
csat
+1
vote
1
answer
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
asked
Jan 25, 2019
in
Mathematics
by
kratos
electricity and magnetism
csat
+2
votes
1
answer
Unification of electromagnetic and weak nuclear forces was done by
asked
Jan 17, 2019
in
Class 12
by
kratos
electricity and magnetism
waves
development of nationalism in the world
csat
some mechanical properties of matter
class-11
the forces
class-12
+3
votes
1
answer
What happens to the resistance of a wire if it is made thinner?
asked
Dec 29, 2018
in
Class 12
by
kratos
electricity and magnetism
neet
digestion
cbse
csat
electricity
digestion and absorption
class-10
absorption
+3
votes
1
answer
Two wires have their lengths, diameters and resistivities all in the ratio of 1 : 2. If the resistance of the thinner wire is 10 ohm,
asked
Dec 28, 2018
in
JEE
by
kratos
electricity and magnetism
csat
jee
jee mains
electric circuits
current electricity
+3
votes
1
answer
Fluorescent tubes are fitted with a choke. The choke coil : (a) steps up the line voltage
asked
Dec 12, 2018
in
Class 12
by
kratos
electricity and magnetism
transformer
cbse
csat
alternating current
class-12
generator
+3
votes
1
answer
Why is parallel arrangement used in domestic wiring?
asked
Dec 6, 2018
in
Class 10
by
kratos
electricity and magnetism
cbse
csat
electricity
class-10
+1
vote
1
answer
A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?
asked
Dec 2, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+2
votes
1
answer
Consider the following statements: An ordinary light bulb has a rather short life because the:
asked
Nov 30, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+1
vote
1
answer
The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong
asked
Nov 25, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+2
votes
1
answer
What is the order of magnitude of electric resistance of the human body (dry) ?
asked
Nov 5, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+3
votes
1
answer
Which one of the following is printed on a commonly used fluorescent tube light?
asked
Oct 29, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+1
vote
1
answer
Domestic electrical wiring is basically a : (a) series connection (b) parallel connection (c) combination of series and parallel connections
asked
Oct 19, 2018
in
Mathematics
by
kratos
electricity and magnetism
csat
+3
votes
1
answer
Two cylindrical rods A and B have same resistivities and same lengths. Diameter of rod A is twice the diameter of the rod B.
asked
Sep 26, 2018
in
JEE
by
kratos
electricity and magnetism
csat
upsee
jee
jee mains
electric circuits
current electricity
+3
votes
1
answer
The use of fluorescent light tubes for lighting homes, offices etc are very common. Also , in the advertisements displayed in front of offices
asked
Aug 29, 2018
in
Class 12
by
kratos
electricity and magnetism
transformer
let us know the substance
cbse
csat
class-6
alternating current
class-12
generator
+3
votes
1
answer
State the voltage at which electricity is supplied to our houses.
asked
Jul 29, 2018
in
Class 10
by
kratos
electricity and magnetism
electrical power and household circuits
class-8
csat
electricity
class-6
class-10
icse
+3
votes
1
answer
Consider the following statements and select the correct code. Assertion (A): In our houses, the current in A.C.
asked
Jul 5, 2018
in
Mathematics
by
kratos
electricity and magnetism
cbse
csat
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