PHY 102 Practice Questions and Answers


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PHY 102 Practice Questions and Answers

PHY 102 Practice Questions and Answers

1 / 40

A uniform electric field of 1000N/C points to the left as shown.

what is the difference in potential (VB-VC) between points B and C ?

2 / 40

Mass of Proton equals ______

3 / 40

The number of vibrations or disturbance produced in one second (unit time) is called ____

4 / 40

The relationship between the voltage (v) , resistance (R), and the current (I) is V=IR ; this is known as ____

5 / 40

Audio and radio signals carried on electrical wires are examples of ___

6 / 40

Protons have magnitudes of charge ______

7 / 40

Two capacitors ( 0.30 and 0.5 uF ) are connected in parallel. What is their equivalent capacitance?

8 / 40

_____states that the total electric flux out of a closed surface is equal to the charge enclosed divided by permittivity

9 / 40

Electric current is measured using a device called ____

10 / 40

The electric potential difference between the ground and a cloud in a particular thunderstorm is 1.2 x 10 ^9 V. What is the magnitude of the change in energy (in multiples of the electron-volt) of an electron that moves between the ground and the cloud?

11 / 40

The electric field at a point on the perpendicular bisector of a dipole is directed?

12 / 40

_____don’t  let election move around within the materials freely

13 / 40

_____is a circuit in which the resistors are arranged with their heads connected together,and their tails connected together

14 / 40

Charge is denoted as ____

15 / 40

The unit of Electric flux is ____

16 / 40

Electric dipole moment p is described as ____

17 / 40

A point charge of magnitude 2uC is moved through a distance of 0.02m against uniform field of intensity 25Vm^-1. Calculate the word done on the charge

18 / 40

Factors affecting capacitance include all except ___

19 / 40

The distance between two nearest crests or troughs is called ____

20 / 40

______ has a negative (-) charge and is located outside of the nucleus in a electron cloud around the atom

21 / 40

The algebraic sum of all the electric charges in any closed system is _____

22 / 40

A pair of point charges with equal magnitude and opposite sign (a positive charge q and a negative charge -q) separated by a distance d is called _____

23 / 40

The region of space in which a charge would be acted upon by an electric force is _____

24 / 40

_____ is the unidirectional flow(one way) of electric charge, or a system in which the movement of electric charge is in one direction only

25 / 40

Two point charges 1C and -1C are placed 5mm away from each other forming a dipole. What will be the field intensity at a point 15cm away from the dipole on its axis?

26 / 40

A uniform electric field of magnitude E=100N/C exists in the space in X-direction. Using the Gauss theorem calculate the flux of this field through a plane square area of edge 10cm placed in the Y-Z plane

27 / 40

All of these are type of resistors except ____

28 / 40

The proton and Neutron occupy the center of the atom system and are referred as the ______

29 / 40

The electron and proton of a hydrogen atom are separated by a distance of [5.3 x 10^ -11]m, find the magnitude of the electric force between the two particles

30 / 40

_____is defined as an imaginary line drawn in such a way that the direction of its tangent at any point is the same as the direction of the electric field vector E at that point

31 / 40

It’s clear that the masses of the proton and neutron are nearly the same while the electron is about _____

32 / 40

Two electric field ___

33 / 40

The magnitude of the electric force between two points charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

The law above satisfies _____

34 / 40

Factors that affect the resistance of a wire include all except _____

35 / 40

Two opposite and equal charges formed a dipole whose dipole moment is about [6.4 x 10^-24]cm.

calculate the maximum torque this dipole would experience in an electric field of [3.2 x10^6]NC^-1

36 / 40

Three cells of emf 3V and internal resistance of 0.6 are connected in parallel in order to reduce the potential difference across the circuit. Calculate the effective internal resistance of the cell ?

37 / 40

The structure of atoms can be described in terms of three particles from the option below except _____

38 / 40

A uniform electric field of 1000N/C points to the left as shown.

what is the difference in potential (VC-VA) between points C and A ?

39 / 40

If a 100W light bulb is on for two hours each day, and energy costs 0.10perkW-h , how much does it cost to run the bulb for a month?

40 / 40

All of these are properties of conductors except ____

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