Calculate the speed of an electron if it travels in a circular path of radius 50 cm in a magnetic field of 5 × 10-3 T. a) 440 × 107 m/s b) 4 × 107 m/s c) 44 × 107 m/s d) 0.4 × 107 m/s

Q: In which type of molecule positive and negative charges coincide with each other? a) Polar b) Unipol...

A: C

Q: A bead is sliding frictionlessly in the orbit in the figure. If the bead is released from the height...

A: mgh1-h2=12mv2g4R-2R=12v2v=2gR

Q: 4-2) please help with part 2 attached. Part 1 has already been submitted

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Q: Which of the following devices is the more accurate one for the measurement of emf? a) Meter Bridge ...

A: D

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A: Given: Capacitance is 3.23μF. Area is 6.35mm2. The new capacitance is 5.63mF. Voltage source is 110V...

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A: A

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A: C

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A: The work done is defined as the product of the force applied on an object and the displacement on th...

Q: X’ is a substance which does not allow the flow of charges through it but permits them to exert elec...

A: B

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A:

Q: These two waves travel along the same string: Y1 = (3.80 mm) sin(2.45tx - 340xt) Y2 = (6.00 mm) sin(...

A: The superposition of the waves can be written as, y=y1+y2=3.80 mmsin(2.45πx-340πt)+6.00 mmsin(0.868π...

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A: Given mass of the child (m1) = 25kg mass of the dog (m2)= 11kg radius of the pond (r)= 15m velocity ...

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A: Given: The surface pressure is 7hPa that is equal to 700 pascals. The temperature of the surface is ...

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A: Given: The radius of the inner sphere is 1.4 cm. The radius of the outer sphere is 9.1 cm. The charg...

Q: 36 cells, each of emf 4V are connected in series and kept in a box. The combination shows an emf of ...

A: D

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: 7. Fill out the table below: At constant F acceleration, m/s? 10 mass m 2m 20 1/6m 1/2m

A: Given, For the constant force,force is samefor 1st mass =m kg , and acceleration =10m/s2for 2nd mass...

Q: Two equal and opposite charges Q1 = 2 C and Q2 = -2C are placed at a distance of 6m from each other....

A: B

Q: The power consumed by a 300 V bulb, having a resistance of 100 ohms, is 3 Watts. a) True b) False

A: B

Q: Problem 2.17 An object initially at (0,0,1) in Cartesian coordinates, moves in the y direction at a ...

A: The relation for r in spherical coordinates are, r=x2+y2+z2=02+02+12=1 The relation for θ in spheric...

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A: A

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A: NOTE: As per guidelines, first three sub-parts have been answered. Angle between the line joining q1...

Q: The resistivity of ‘X’ decreases with temperature and its coefficient of resistivity is negative. Id...

A: B

Q: Which type of current is flowing through a circuit? a) Static current b) Conventional current c) Ele...

A: C

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A: As the machine is operating in carnot cycle, We have Tc=00C=273KTH=240C=297KNow effeciency is given ...

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A: the Ammeter, is a device of a marginally lower resistance value, since it's designed to measure the ...

Q: Calculate the drift velocity of free electrons if a current of 200 A is maintained in a conductor of...

A: A

Q: A 3.34-nF parallel-plate capacitor is charged to an initial potential difference AV; = 100 V and is ...

A:

Q: Which of the following statements is correct? a) An electric field is a scalar quantity b) Electric ...

A: C

Q: Earth’s potential is _______ a) Zero b) Highly positive c) Highly negative d) Varies from place to p...

A: A

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A: (a) In given problem, parent particle of mass M breaks into two-particle of equal mass 'm' as there ...

Q: north pole of a magnet is brought near a stationary negatively charged conductor. What is the force ...

A: C

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A: B

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A: Given: y=c1cos ωt+c2 sin ωt The set functions are c1cos ωt and c2cos ωt. If u=c1cos ωt and v=c2 sin ...

Q: What is the net electric field in the outer regions above the upper plate and below the lower plate ...

A: B

Q: Three charges, q1 = 14.46 nC, q2 = -19.62 nC, and q3 = -11.19 nC, are placed on three corners of a s...

A: Given: Three charges: q1=14.46 nCq2=-19.62 nCq3=-11.19 nCplaced on three corners of a square.Side of...

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Q: A 3.34-nF parallel-plate capacitor is charged to an initial potential difference AV = 100 V and is t...

A:

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A: Experimentally it has been found that drag force acting on a body depends on the velocity of that bo...

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A:

Q: Find the potential of a uniformly charged spherical shell of radius R?

A: For a point with r > R, the potential is given by:

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A: Carnot cycle consists of two adiabatic and two isothermal process in the following order: 1:  A syst...

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A: D

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A: D

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A: For undamped spring, There are many ways to proof the conservation of energy like in Lagranian time ...

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A: A

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A: Consider the direction down the incline to be positive x-axis, and direction perpendicularly upwards...

Q: If a charged body is moved in an electric field against the Coulomb force, then ________ a) Work is ...

A: A

Q: When a charge moves parallel or antiparallel to the direction of the magnetic field, it experiences ...

A: B