The tendency of a material to oppose the flow of charge is called: B) resistance
Answer:
option (a)
Explanation:
The magnetic field is produced by the electric current, and the direction of magnetic field is given by the Maxwells' right hand rule.
The magnetic field is also be produced by the time varying magnetic fields.
Answer:
The separation of the two slits is = 1.5 × m
Explanation:
Wave length = 630 nm = 0.63 mm
x = 35 mm
l = 2.8 m
Order of fringes (m) = 3
We know that the separation of the two slits is given by
Put all the values in above formula we get
d = 1.5 × m
Therefore the separation of the two slits is = 1.5 × m
Answer:
The magnitude of magnetic force between the two parallel wires is 1.13 N.
Explanation:
Given;
length of each wire, l = 31 m
distance between the two parallel wires, r = 0.155 m
current on each wire, I = 168 A
The magnitude of magnetic force between the two parallel wires is calculated as;
Therefore, the magnitude of magnetic force between the two parallel wires is 1.13 N.
Answer:
calorimeter is the device used to measure heat reaction