Describe how the capacitance varies with area
Q: Circuit in phone charger. Resistor can only dissipate up to 0.30 Watts of power before melting. Wh...
A: The power dissipated by the resistor is related to the resistance (R) and the voltage across the cap...
Q: In a thunderstorm accompanied by lightning, it is safest to run near a tree or open ground rather th...
A: B
Q: Select the correct statement regarding the force on a particle in SHM. a) It is linearly proportiona...
A: B
Q: If a proton and electron are released when they are 2.0 m apart, find the initial acceleration of e...
A: The magnitude of the electrostatic force on a charge q1 due to another charge q2 separated by a dist...
Q: How does the capacitance change with the effect of the dielectric when the battery remains connected...
A: A
Q: A bicycle tire of radius 0.68 m rotates 1000 times in 600 s. Calculate a.) the distance traveled by ...
A: Given information: The radius of the bicycle tire, r=0.68 m The tire rotates 1000 times in 600 s The...
Q: The charge on the capacitor plates decreases from Q0 to Q with the effect of the dielectric when the...
A: B
Q: What is the dielectric constant of the medium if the capacitance of a parallel plate capacitor incre...
A: C
Q: An unstable particle of mass M decays into two identical particles, eachof mass m. Obtain an express...
A: Use the conservation of four-momentum.
Q: If a 110 ft steel measuring tape with a cross section of 0.008 in2 is stretched with a force of 20 l...
A: When the tape is stretched with the help of the force, the length of the tape will increase. Accordi...
Q: Pick out the expression of electric potential energy from the following.a) U = 1(4πεo)×[q1q2r]b) U =...
A: A
Q: I Review I Constants A very small sphere with positive charge q=+ 5.00 µC is released from rest at a...
A: Given q=5.00μC=5.00x10-6C λ=+4.00μC/m=4.00x10-6C/m a=1.30cm=0.0130m b=4.00cm=0.0400m
Q: Comp forc by when it's at opposition. Express your result as a numerical fraction of the differentia...
A: The differential tidal force exerted by the moon on a point mass on Earth's surface is given by- ∆Fm...
Q: The band gap between the valence band and conduction band is the measure of ______ a) The conductivi...
A: Correct Answer- a) The conductivity of the material
Q: How is the electric field at the surface of a charged conductor related to the surface charge densit...
A: A
Q: Which of the following is not a valid reason for using alloys to make standard resistors? a) Alloys ...
A: C
Q: Two springs in horizontal spring mass systems have spring constants in the ratio 2:3. By what ratio ...
A: B
Q: A train with a frequency ‘f’. What will be the frequency heard by a person sitting in the train? Spe...
A: There is no relative motion between the source and observer, thus the frequency heard by the person ...
Q: Superconductors have __________ a) Almost zero resistivity b) Very high resistivity c) Temperature-d...
A: A
Q: The electric field at a point on the perpendicular bisector of a dipole is directed ______ a) Along ...
A: C
Q: Which type of current is flowing through a circuit? a) Static current b) Conventional current c) Ele...
A: C
Q: Consider a particle undergoing an SHM of amplitude A & angular frequency w. What is the magnitud...
A: B
Q: What is the induced dipole moment developed per unit volume of a dielectric when placed in an extern...
A: D
Q: Find the resistance value of the carbon resistor if the colors of the four bands are yellow, violet,...
A: Given that, Carbon resistor having four bands are yellow, violet, brown, and gold respectively we kn...
Q: The molecules of a polar dielectric have no dipole moment. State true or false. a) True b) False
A: Polar dielectric are the substances in which the center of the negative and the positive ions of the...
Q: Deri ns a
A: Magnetohydrodynamic wavesThe wave modes derived using MHD plasma theory are called magnetohydrodynam...
Q: Electromagnetic waves are considered to be which of the following types? a) Transverse b) Longitudin...
A: C
Q: A solid non conducting sphere of radius 1m carries a total charge of 10 C which is uniformly distrib...
A: Given, Total charge is 10 C and radius is 1 m
Q: How does the potential difference change with the effect of the dielectric when the battery is kept ...
A: B
Q: standing wave is vibrating in the fourth harmonic and the wavelength is λ, what is the length of the...
A: A
Q: What is the total work done on moving a test charge on an equipotential surface? a) Maximum b) Minim...
A: A
Q: particle of mass m starts from the mean position of a SHM, at t=0, and goes towards -A. If the angul...
A: A
Q: Force on particle, of mass ‘m’, undergoing SHM is given by: F = -kx. What is the relation between x ...
A: C
Q: equivalent overall resistance is smaller than the smallest parallel resistor. a) True b) False
A: A
Q: Why is the speed of longitudinal waves sound in solids greater than that in liquids? a) Solids have ...
A: C
Q: particle is in SHM. When displacement is ‘a‘ potential energy is 8J. When displacement is ‘a‘ potent...
A: A
Q: The attraction is the real proof of an object being charged. The statement is _______ a) True b) Fal...
A: If an object is attracted by another charged body, the first object may be oppositely charged or not...
Q: If you have a piece of land but no idea what is its measurement and have no measuring tape with you,...
A: One can relatively measure the plot of the land using the knowledge of one's one height. One can arr...
Q: The electric potential at an axial point of a dipole is the maximum. a) True b) False
A: A
Q: sinusoidal wave has an amplitude of 3cm. Time period is 1s. The wavelength is 1cm. And at x = 0, t=0...
A: B
Q: The block is slowly pulled from its equilibrium position to some position æinit > 0 along the x axis...
A: Given: The expression of displacement of the harmonic oscillator is, xt=Ccosωt+Ssinωt The initial ve...
Q: The resistivity of ‘X’ decreases with temperature and its coefficient of resistivity is negative. Id...
A: B
Q: Four charges are kept at the corner points of a square. The net force on a charge kept at the center...
A: D
Q: A 20 kg block B is suspended from a 40 kg cart A with an initial angle 30 degrees from the vertical ...
A: Apply principle of conservation of linear momentum mA(vA)1+mBvB2=mAvA+mBvB0=mAvA+mBvBvA=-mBmAvB ...
Q: Identify the type of conductor in which the variation of current with potential difference may depen...
A: C
Q: A circular annulus of inner radius r and outer radius R has a uniform charge density a. What will be...
A: B
Q: The speed of sound in air is 330m/s. What is the mass of 1 mole of air? Assume it is an ideal gas. a...
A: C
Q: What is the dimension of the dipole moment?a) [L T I]b) [L T I2]c) [M L T I]d) [L T I-1]
A: The magnitude of the dipole moment p of two equal and opposite charges q and -q separated by a dista...
Q: A mass M is free to slide along a frictionless rail. A pendulum of length L and mass m hangs from M....
A: Given system :- Let at time t the particle of mass M is at distance x from the origin and the partic...
Q: Current carrier in conductors is ____ a) Electron b) Proton c) Neutron d) Positron
A: A
Describe how the capacitance varies with area
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)