The galvanometer do not show any deflection if:

Bridge current flow to be constant

What happens below the threshold frequency:

Partial emission of photoelectrons

Increase in photoelectric current

Decrease in photoelectric current

What happens to mutual inductance of pair of coils when distance between the coils is increased:

Mutual Inductance of both the coils decreases

Mutual Inductance of first coil will increase with decrease in second coil

Mutual Inductance of both the coils increases

Mutual Inductance of second coil will increase with decrease in first coil

In an equipotential surface:

No work is done to bring a test charge to a near charge

Entire charge is concentrated at the center.

Electric field is in the opposite direction in which the potential decreases

Electric field due to induced charges opposes the external field within the conductor

When does a transistor act as a switch:

Collector current is kept constant

12th Grade Physics Practice Paper! Mind Map

Reviewed by Matt Balanda

Matt Balanda, BS (Aerospace Engineering) |

Science Teacher

Review Board Member

Matt Balanda, a Calvary Chapel Christian School leader with a Bachelor's in Aerospace Engineering and Mathematics, transitioned from Aerospace Engineering to Education with a Master's from California Baptist University. As the High School Vice-Principal and Physics teacher, he nurtures students' love of learning and faith, creating an enriching and transformational educational experience.

, BS (Aerospace Engineering)

By Tanmay Shankar

Tanmay Shankar

Community Contributor

Quizzes Created: 491 | Total Attempts: 1,894,844

| Attempts: 1,128 | Questions: 50 | Updated: Feb 21, 2025