Physics A-Level Quiz

What is the weight of the ball coated with conducting paint?

• 0.03 N

• 0.3 N

• 3 N

• 0.003 N

Which formula is used to calculate the electrical force acting on the charged ball?

• F = Eq

• F = ma

• F = Gm1m2/r^2

• F = mv^2/r

What is the direction of the electrical force acting on the ball?

• Vertically downwards

• Vertically upwards

• Horizontally towards the negative plate

• Horizontally towards the positive plate

How is the angle theta calculated in the context of the forces acting on the ball?

• Using cosine function

• Using sine function

• Using cotangent function

• Using tangent function

What happens to the electrical force when the distance between the plates decreases?

• It decreases

• It remains constant

• It increases

• It becomes zero

Why does the ball start to oscillate between the plates?

• Due to decreased tension

• Due to increased electrical force

• Due to air resistance

• Due to gravitational force

What is the effect on the ball's deflection when the electrical force increases?

• Deflection increases

• Deflection remains the same

• Deflection becomes zero

• Deflection decreases

What is the separation between the plates when the ball starts to oscillate?

• 12 cm

• 8 cm

• 5 cm

• 10 cm

What is the relationship between current, charge, and time period in calculating frequency?

• I = Q/T

• I = T/Q

• I = Q^2/T

• I = T^2/Q

What is the frequency of oscillations if the current is 3.2 x 10^-8 A and the charge is 9 x 10^-9 C?

• 3.6 Hz

• 2.6 Hz

• 5.6 Hz

• 4.6 Hz