What
Q: equation of a wave is: y = 2sin(4x-3t). What will be the equation of the reflected wave from a free ...
A: A
Q: What is the unit of surface charge density in the SI unit? a) C b) C/m c) C/m2 d) C/m3
A: C
Q: The angle of the oblique shock wave= Mach number downstream the shock wave = Stagnation pressure...
A: Given -Data- Speed(v) =1038m/s Temperature(T)=298K Pressure(P)=100kPa angle =10degree To-Find:- a) T...
Q: If the force acting on a point charge kept on the axis of an electric dipole is F, what will be the ...
A: B
Q: Two point charges +4q and +q are kept at a distance of 30 cm from each other. At which point between...
A: B
Q: What happens to the capacitance when a dielectric material is inserted between the plates of a paral...
A: C
Q: Laplace correction makes use of which of the following processes? a) Isothermal b) Adiabatic c) Isoc...
A: Introduction: Newton worked on the propagation of sound waves through the air. He assumed that this ...
Q: A non-conducting sphere has uniform charge density in it. The electric field at a point inside the s...
A: B
Q: What is the dimension of linear charge density?a) [I T L-1]b) [I T-1 L]c) [I T L]d) [I-1 T-1 L]
A: A
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: Calculate the drift velocity of free electrons if a current of 5 A is maintained in a conductor of c...
A: A
Q: If a charge is placed outside a closed surface, flux due to that charge inside the surface will be _...
A: D
Q: Problem A Use the given coordinate system and dimensions to perform the following calculation. The v...
A: Let θ denotes the angle of the force line with the positive x-axis, β denotes the angle of the line ...
Q: If electric field intensity at a certain distance from a dipole on its axis is E1 and at the same di...
A: B
Q: small currents, ‘X’ obeys Ohm’s law. But when large currents are passed through the same conductor, ...
A: A
Q: What is the potential energy at the center of an equilateral triangle if +5esu, +5esu and -10esu are...
A: D
Q: capacitor of capacitance 5μF is charged to 50 V and another capacitor of capacitance 7μF is charged ...
A: D
Q: Suppose that you seal an ordinary 60W lightbulb and a suitable batteryinside a transparent enclosure...
A: Given, Power, P=60WTime,t=1year=365days=8760hrs=525600min=31536×103sEnergy,E=?Speed of light,c=3×108...
Q: If the quality factor of the Nd: YAG (1.064 um) laser is (Q=1.85x10) with a length resonator (Im), C...
A: The quality factor of the laser is given by:
Q: Dipole moment depends on _______ a) Charge only b) Charge and length of a dipole c) Charge, length o...
A: B
Q: An electric field is directed along the tangent of an equipotential surface.a) Trueb) False
A: B
Q: Two point charges q1 and q2 are situated at a distance d. There is no such point in between them whe...
A: C
Q: If a charged body is moved in an electric field against the Coulomb force, then ________ a) Work is ...
A: The work done is defined as the product of the force applied on an object and the displacement on th...
Q: The resistivity of semiconductors and insulators decreases linearly with the increase of temperature...
A: B
Q: Identify the type of conductors in which both positive and negative charges can move. a) Thermosets ...
A: C
Q: Resonance occurs when frequency of forced oscillations is close to natural frequency. True or False?...
A: A
Q: Gold-leaf electroscope can be used _______ a) Only to detect the presence of charge b) To detect the...
A: B
Q: 12.5
A: The Schwarzschild radiusRS.given,MassM of the Sun=1.989×1030 kgUniversal gravitational constantG=6.6...
Q: Induction occurs due to ______ a) Movement of electron b) Leakage of charge c) Ionization of atoms d...
A: B
Q: What is the ratio of the polarization to εo times the electric field called? a) Polarisation density...
A: B
Q: 8.What type of surface is the surface of a conductor? a) Equipotential b)Unipolar c) Unipotential d)...
A: The surface of the conductor is equipotential surface. The electric field is perpendicular to every ...
Q: wire has a resistance of 5.5 Ω at 19oC and 21.5 Ω at 200oC. Find the temperature coefficient of resi...
A: A
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: The formula v = √(P/ρ) can be used for any gas considering isothermal process. True or False? a) Tru...
A: B
Q: Example 1 Consider charge of 3x10 C at point P, (1,2,3) and charge of -10 C at point P2(2,0,5) find ...
A: The force at point P2 can be calculated using Coulomb's law of electrostatics. Let's assume that all...
Q: source moves towards a stationary observer with a speed of 10m/s. If the frequency of the source is ...
A: A
Q: What is the dimension of the dipole moment?a) [I L T]b) [I L T-1]c) [I L2 T]d) [I T]
A: A
Q: Find the electric field intensity at 10cm away from a point charge of 100 esu. a) 1 dyne/esu b) 10 d...
A: A
Q: In a standing wave the amplitude of a particle is fixed, but varies from particle to particle. True ...
A: A
Q: The SI unit of electrical energy is ____________ a) kilojoule (KJ) b) joules (J) c) watt (W) d) kilo...
A: The correct answer is b.
Q: Which of the following is an example of a molecule whose centre of mass of positive and negative cha...
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: A well with vertical sides and water at the bottom resonates at 6.30 Hz and at no lower frequency. (...
A: Let the close end is a node and the open end is antinode. Then the wavelength will be four-time the ...
Q: (1) The revenue for a product is R(x) = -0.004x² + 21x – 6200 and the cost is C(x) = 0.02x + 38, for...
A:
Q: How does the capacitance change with the effect of the dielectric when the battery is kept disconnec...
A: A
Q: What is the study of electric charges in motion called? a) Charge mobility b) Electronic mobility c)...
A: D
Q: nature, free charged particles exist in the upper strata of the environment called the stratosphere....
A: B
Q: A spring is suspended vertically from the ceiling of a room. When a mass is attached to the bottom o...
A:
Q: What is the electric potential at the perpendicular bisector of an electric dipole? a) Positive b) N...
A: C
Q: Two stationary positive point charges, charge 1 of magnitude 3.80 nC and charge 2 of magnitude 1.90 ...
A:
Perhaps the most famous are the Perseids, which peak around August 12 every year. Every Perseid meteor is a tiny piece of the comet Swift-Tuttle, which swings by the Sun every 135 years
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