Your friend insists that he is "listening to" a radio wave. State the difference between a sound and a radio wave and explain how information from the radio station reaches the inner ear. s
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: In a capacitor, energy is stored in the form of electric field. a) True b) False
A: A
Q: Hooke’s law states that when a spring is stretched, it pulls back with a force proportional to the a...
A: We need to find the amount of work done in pulling the spring from x=0 to x=2 if the spring with spr...
Q: The CO2 molecule is a dipole. The statement is ______ a) True b) False
A: Option
Q: Identify the type of conductors whose V-I relationship is linear. a) Thyristor b) Non-ohmic conducto...
A: c
Q: The charge on the capacitor plates decreases from Q0 to Q with the effect of the dielectric when the...
A: B
Q: Which one of the following is the practical unit of power? a) Watt (W) b) Kilowatt hour (kWh) c) Hor...
A: C
Q: What is the number of electrons that constitutes a current of one Ampere? a) 2.25 × 1018 b) 2.25 × 1...
A: C
Q: A frame ABC is supported in part by cable DBE that passes through a frictionless ring at B. Knowing ...
A: Given that: Tension in the cable, T= 385 N
Q: An electric field is directed along the tangent of an equipotential surface.a) Trueb) False
A: B
Q: Figure shows the energy-level diagram for neon. What wavelength is emitted when the neon makes a dir...
A: Given: The energy difference between two states is E=20.66 eV. The formula to calculate the energy...
Q: The graph of a quadratic function is given. Write the function’s equation, selecting from the follow...
A: The correct answer is : g(x) = (x+1) 2 + 1 is the equation of the mentioned graph in the question.
Q: Q.6. Write a few features (5 or more) for the PSPICE software used to simulate experiments in the el...
A: Solution: The PSPICE software is a step-by-step guide for simulation and design software schematic...
Q: Three charges –q, Q and –q are placed in a straight line maintaining equal distance from each other....
A: D
Q: What number of electrons will flow in one minute through a conductor that carries 1 Ampere current? ...
A: C
Q: Find the resistance value of the carbon resistor if the colors of bands are green, violet, and red r...
A: C
Q: How does the electric field change with the effect of the dielectric when the battery remains connec...
A: Let the voltage and electric field in the capacitor without dielectric be E0 and V0 respectively. Th...
Q: Which one of the following is similar between electrostatic force and gravitational force? a) Force ...
A: A) Electrostatic forces are both attractive and repulsive depending upon the type of charge, but gr...
Q: If three equal charges are placed at the corners of an equilateral triangle, the potential at the ce...
A: B
Q: A block of mass m1 hangs from an ideal rope attached to a block of mass m2 which sits on an incline ...
A:
Q: In a parallel plate capacitor, the capacitance increases from 100 F to 800 F, on introducing a diele...
A: D
Q: How does stored energy vary with voltage
A: We know that the stored energy U = 1/2 CV2 So the energy is proportional to V2 of voltage.
Q: What happens to the capacitance when a dielectric material is inserted between the plates of a paral...
A: C
Q: equivalent overall resistance is smaller than the smallest parallel resistor. a) True b) False
A: A
Q: N take 10 pls and t is not height , it is thickness . Punc diameter is 99.5 than formula. Thank you ...
A: (a) punch diameter (Dp) should be DP= 99.5 mm(GIVEN) (b) From formula punch diameter should be 100...
Q: What is the nature of equipotential surfaces in case of a positive point charge?a) Circularb) Spheri...
A: B
Q: A field line can diverge from and converge at the same conductor. The statement is _____ a) True b) ...
A: B
Q: The piston of the hydraulic cylinder gives pin A a constant velocity v = 2.2 ft/sec in the direction...
A: let say the tangential velocity of point A r˙= u then usin690=vusin690=2.2ft/s therefore r˙=u=2.2/s...
Q: Five charges are arranged as shown in the figure; four identical charges form a square of side d whi...
A: For charge Q to be in equilibrium net forces on Q should be 0. FnetQ=0FnetQx=0FnetQy=0 Net force in ...
Q: Consider a particle undergoing an SHM of amplitude A & angular frequency w. What is the magnitud...
A: Given: The amplitude of SHM is A. The angular frequency of SHM is ω. Introduction: Simple harmonic m...
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: 26.(a) Derive a relativistically correct formula that gives the de Broglie wavelength of a charged p...
A: (a) Derive a relativistically correct formula that gives the de Broglie wavelength of the charged pa...
Q: Please solve it
A: Given: The heat absorbed during ab is 50 J. The heat absorbed during bc is zero. The heat rejected d...
Q: You find that environmental noise in the form of the 60 Hz power line signal is causing problems for...
A: Since the noise frequency ( = 60 Hz) is less than the signal frequency(=70 Hz). Thus we should use h...
Q: Which of the following is an example of a molecule whose centre of mass of positive and negative cha...
A: A
Q: +q, +2q, +3q, +4q, ……(up to +20q) charges are situated at coordinates (0,0) , (1,0) ,(2,0) , ….. (Up...
A: B
Q: A surveyor uses a steel measuring tape that is exactly 75000m long at a temperature of 20 degree cel...
A: The original length of the measuring tape is given as, Lo = 75.000 m The initial temperature is give...
Q: A 1C charge is placed at the origin. Other infinite numbers of unit charges are placed at √2, √4, √8...
A: A
Q: Two point charges with 5.00 µC and −3.00 µC charges are placed 25.0 cm apart. A third charge resides...
A: charge Q1 =5μC and second charge Q2=-3μC disctnace between them L=25m let say thied charge =q now be...
Q: Pick out the correct statement from the following about parallel combination of resistors. a) The cu...
A: In parallel combination, the resistors are connected together at one end, and are also all connected...
Q: A solid non conducting sphere of radius 1m carries a total charge of 10 C which is uniformly distrib...
A: Given: The total charge on the sphere q = 10 C. The radius of the sphere r = 1 m.
Q: x = xo + vot + , v = vo + at , vở + 2aAx 1. A car moving on a straight road increases its speed from...
A:
Q: If a charge is placed outside a closed surface, flux due to that charge inside the surface will be _...
A: D
Q: What is the ratio of the polarization to εo times the electric field called? a) Polarisation density...
A: B
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: In which type of molecule positive and negative charges does not coincide with each other? a) Isentr...
A: C
Q: Which among the following has weak temperature dependence values with resistivity? a) Silver b) Copp...
A: C
Q: The resistivity of ‘X’ decreases with temperature and its coefficient of resistivity is negative. Id...
A: B
Q: Identify the factor which does not depend on the resistance of a conductor.a) Nature of materialb) A...
A: D
Q: The work done to move a charge of 20C by a distance of 2cm is 2J. What is the potential difference b...
A: B
Pls help on this question ASAP
Step by step
Solved in 3 steps
