Two charges +q and -q are placed at a distance d apart. Where is the electric fi

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Question: Two charges +q and -q are placed at a distance d apart. Where is the electric field zero?

Options:

Correct Answer: Closer to -q

Solution:

The electric field is zero at a point closer to -q because the magnitudes of the fields due to both charges will be equal at that point.

Two charges +q and -q are placed at a distance d apart. Where is the electric field zero?

Two charges +q and -q are placed at a distance d apart. Where is the electric field zero?

Correct Answer: Between the two charges, closer to -q.

Step 1: Understand that we have two charges: one positive charge (+q) and one negative charge (-q).
Step 2: Recognize that the electric field created by a positive charge points away from the charge, while the electric field created by a negative charge points towards the charge.
Step 3: Since the charges are opposite, there will be a point in between them where the electric fields from both charges will cancel each other out.
Step 4: The electric field from the positive charge (+q) decreases with distance, while the electric field from the negative charge (-q) also decreases with distance but is directed towards the charge.
Step 5: To find the point where the electric field is zero, we need to find a location where the strength of the electric field from +q equals the strength of the electric field from -q.
Step 6: This point will be closer to the negative charge (-q) because the electric field from the positive charge decreases faster as you move away from it.
Step 7: Therefore, the electric field is zero at a point that is closer to the negative charge (-q).

Electric Field Due to Point Charges – Understanding how electric fields from multiple point charges interact and where they can cancel each other out.
Superposition Principle – The principle that the total electric field at a point is the vector sum of the electric fields due to individual charges.
Location of Zero Electric Field – Determining the position where the electric fields from two opposite charges are equal in magnitude and opposite in direction.