Thursday, 2 July 2026

[Demo] Ohm's Law — Physics Daily Challenge

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Objective3 questions

Q1Medium⚡ 1 XP

[Demo] A wire has resistance 10 Ω. If voltage across it doubles, current will:

AHalve

BDouble

CStay the same

DQuadruple

Q2Medium⚡ 1 XP

[Demo] Which unit measures electrical resistance?

AAmpere

BVolt

COhm

DWatt

Q3Medium⚡ 1 XP

[Demo] In Ohm's Law (V = IR), if I = 2A and R = 5Ω, V equals:

A2.5 V

B7 V

C10 V

D3 V

WrittenOpen-answer question

Medium⚡ 10 XP

[Demo] Explain Ohm's Law in your own words and give one real-life example.