Understanding Electric Fields and Potentials

What happens to a small positive test charge placed between a positive and a negative charge?

• It is repelled by both charges.

• It is attracted to both charges.

• It remains stationary.

• It is repelled by the positive charge and attracted to the negative charge.

How do you calculate the total electric field strength at the midpoint between two charges?

• By dividing the magnitudes of the two electric fields.

• By multiplying the magnitudes of the two electric fields.

• By adding the magnitudes of the two electric fields.

• By subtracting the magnitudes of the two electric fields.

What is the net electric field at the midpoint if both charges are positive?

• It is equal to the difference of the two fields.

• It is equal to the sum of the two fields.

• It is zero.

• It is equal to the product of the two fields.

What type of quantity is electric potential?

• Tensor

• Scalar

• Matrix

• Vector

How do you find the total electric potential at the midpoint between two charges?

• By adding the vector components of the potentials.

• By multiplying the algebraic expressions of the potentials.

• By subtracting the vector components of the potentials.

• By summing the algebraic expressions of the potentials.