মূল বিষয়বস্তুতে যান

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · প্রশ্ন 120

A potential difference develops in a conductor due to a temperature difference along it. This phenomenon is called:

Joule effect
Seebeck effect
Peltier effect
Thomson effect
None of the above / More than one of the above

উত্তর দেখান ও ব্যাখ্যা

উত্তর: (D) Thomson effect

ব্যাখ্যা

The Thomson effect involves a single conductor whose ends are at different temperatures.

(A) ভুল
Wrong: heating due to current.
(B) ভুল
Wrong: needs a junction of two different metals.
(C) ভুল
Wrong: heating/cooling at a junction due to current.
(D) সঠিক
Correct: concerns a single conductor with a temperature gradient.
(E) ভুল
Wrong: only one of the options A–D is correct.