An electromagnetic field exists only when there is
an increasing current
decreasing current
voltage
current
A
decreasing current
B
voltage
C
an increasing current
D
current
Open in App
Solution
Verified by Toppr
An electromagnetic field exists only when there is current.
electric current flowing through a wire caused a nearby compass to deflect. ... In most conductors, the magnetic field exists only as long as the current is flowing (i.e. an electrical charge is in motion).
Was this answer helpful?
1
Similar Questions
Q1
An electromagnetic field exists only when there is
View Solution
Q2
An electromagnet acts as a standard magnet only when there is an electric current.
View Solution
Q3
An electric field and a magnetic field exist in a region. The fields are not perpendicular to each other.
(a) This is not possible.
(b) No electromagnetic wave is passing through the region.
(c) An electromagnetic wave may be passing through the region.
(d) An electromagnetic wave is certainly passing through the region.
View Solution
Q4
When there is an electric current through a conducting wire along its length then an electric field must exist
View Solution
Q5
If aggregate demand increases, aggregate supply will increase only when there is(are)