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What are a few of the differences between resistance and resistivity?
Answer:
The resistance R of wire depends on both the size and shape of the wire and on the resistivity a physical quantity whose value characterizes the material of which the wire is made.
Where l is the length of the wire and A is the cross sectional are of the wire.
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
#question. third law of motion.
Method of Making magnet: There are two types of making magnets. Single Touch Method: a. In this method a bar magnet is rubbed on a hard steel bar. b. The magnet is k
A rectangular coil of sides 8cm by 6cm is rotating in a magnetic field such that the longer sides cut the magnetic field. Calculate the maximum generated e.m.f. if there are 6
IF a football player kicks a football so that it spends 3.0 seconds in the air and travels 50m, then find the velocity and angle of the kick.
Q. Explain an alloy? Answer:- An alloy is a homogeneous hybrid of two or else more elements at least one of which is a metal and where the resulting material has metallic
Describe Fresnel''s theory of optical rotation
If a ring were constructed as knid of a space station. How fast must a 50.0-m-radius ring rotate to simulate Earth's gravity?
Describe Guass law and measure electric field at all possible points due to (i) Charged Sphere (Hollow Sphere) (inside, outside and on the surface of the sphere) (ii) Charge
Cosmic background radiation; primal glow The background of radiation typically in the frequency range 3 x 10 11 to 3 x 10 8 Hz discovered in space in the year of 1965. It is
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