Question

1.The electric field at a distance of 2 mm from a test charge is _____the field at a distance of 4 mm

a. The same as

b twice as strong as

c four times as strong as

d 1/4 as strong as

e have as strong ass

2. an electrical field contains two charges ANB. If the charges are doubled to be to a N to be, what would happen to the force on charge a?

a The same as

b twice as strong as

c four times as strong as

d 1/4 as strong as

e Half as strong as

3. The electric Field force midway between two equal positive charges

a is twice as strong as the field of one charge alone

b is half as strong as field of one charge alone

c is zero

4 if you come your hair in the comb becomes negatively charged, your hair becomes____ charged because___

a. negatively/it loses electrons

b. negatively/it gains protons

c. positively/it loses electrons

d. positively/ it loses protons

5. which of the following is true about electric field lines?

a lines begin on positive charge an end on negative

b Lines are close together where the field is strong

c The direction of the electric force on a charge and tangent to the field line

d all these statements are true

6. which of the following best describes a series circuit

a. a circuit in which voltage remains the same across each resistor

b. A circuit in which the current will change after each resistor

c. A circuit in which current splits in two different wires

d. A circuit in which the voltage will change after each resistor

6. fuses are used to

a. decrease the voltage in a circuit

b. Control the direction of flow

c. decrease the current in a circuit

d. Break when current is exceeded its limit

Answer 1

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