Electrostatics and charge motion: If point A is at a lower electric potential than point B, how does an electron between A and B move? Assume the electron is free to move along the line joining A and B with no other forces. Choose the correct option.

Q: Electrostatics and charge motion: If point A is at a lower electric potential than point B, how does an electron between A and B move? Assume the electron is free to move along the line joining A and B with no other forces. Choose the correct opti…

Concept Electric field points from higher potential to lower potential. An electron (negative charge) accelerates opposite to E, i.e., toward higher potential. Final Answer From A to B (toward higher potential)

Difficulty: Easy

From B to A (toward lower potential)
From A to B (toward higher potential)
Remains at rest
Oscillates randomly

Correct Answer: From A to B (toward higher potential)

Explanation:

Concept
Electric field points from higher potential to lower potential. An electron (negative charge) accelerates opposite to E, i.e., toward higher potential.

Final Answer
From A to B (toward higher potential)

← Previous Question Next Question→

More Questions from Physics

Work vs. effort: Why is it easier to roll a stone up an inclined road than to lift it vertically? Analyze in terms of work done and applied force (mechanical advantage of an incline). Choose the correct option.
Relative motion in rain: A man runs eastward while rain falls vertically — from which apparent direction does the rain seem to come? Assume still air aloft; runner’s speed is horizontal toward the east. Choose the correct option.
Household electricity safety: Why shouldn’t many appliances be connected to the same power socket? Consider effects on current, wiring temperature, and voltage drop in domestic circuits. Choose the correct option.
Nuclear discoveries: Who discovered natural radioactivity? Identify the scientist associated with the 1896 discovery of spontaneous radioactivity in uranium salts. Choose the correct option.
Why do stars twinkle? Atmospheric effects on starlight seen from Earth Explain the main physical reason for rapid fluctuations in a star’s apparent brightness/position. Choose the correct option.
Units and dimensions: The pascal (Pa) is the SI unit of which quantity? Identify the physical quantity measured in N/m² = Pa in the SI system. Choose the correct option.
Semiconductor optoelectronics: What do LEDs in electronic toys emit? State the type of electromagnetic radiation typically produced by Light Emitting Diodes. Choose the correct option.
Vector addition: Minimum number of unequal vectors required to yield zero resultant Assume vectors lie in a plane as needed; they must be of unequal magnitudes. Choose the correct option.
Rotational dynamics concept: What is the moment of inertia of a body? Choose the statement that best defines moment of inertia with respect to a specified axis; use this to identify its nature and dependence.
Wave propagation in media: In which medium does sound travel at the fastest speed? Compare typical speeds in gases, liquids, and solids; assume standard conditions and homogeneous media.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion