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Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances.Solution)Given lengths l1=1 l2=4Given radius r1=1 r2=2 Given specific resistances Ρ(rho)1=3 Ρ2= 1we know the R=Ρl/A R1/R2=3/1.
Capacitance: If we increase the voltage between the plates, the charge increases, but the ratio of charge to voltage remains the same. This ratio gives the capacitance (C) of
Assume we place a screen with two parallel slits right in front of a lens (with focal distance f ), and illuminate with light (at wavelength λ) from far away. (a) What will be the
what is electric field
A packed parachute is dropped from rest from an airplane. A daredevil is launched straight down rom the plane 3.00s later. Neglecting air resistance, the daredevil catches up to th
Hello, I''d like to ask, why do objects, that fall from higher heights hit stronger that those, falling from smaller heights, if force equals mass times acceleration, and yet accel
The current/voltage relationship for two resistors A and B is as shown in Figure. Verify the value of the resistance of every resistor.
LENARD ATOMIC MODEL : Lenard suggested that the atom must have a lot of empty in it. Lenard's model of an atom could not explain about the stability and mass of an atom .
Define the term scanning electron microscope. Scanning electron microscope: The scanning electron microscope (SEM) is a form of electron microscope which images the sample s
Explain electric flux. Write its S.I. units. A spherical rubber balloon carries a charge that is uniformly distributed over its surface. As the balloon is blown up and enhances in
Reverse Characteristic of a Zener diode Reset voltage to zero. Connect zener diode as shown in fig. and reverse characteristics are demonstrated in fig. Raise voltag
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