alleryStart learning →In a series circuit with R1 = 4 Ω and R2 = 6 Ω, total resistance is:
- 2 Ω
- 24 Ω
- 10 Ω
- 2.4 Ω
Show answer and solution
Correct answer: C. 10 Ω
**Series resistors add:** R_total = R1 + R2 = 4 + 6 = 10 Ω.
Same current flows through both.
Uttarakhand Board Class 10 Class10 Electricity Circuits — practice questions
Explore 2 free Class10 Electricity Circuits questions in Uttarakhand Board Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.
Practise Class10 Electricity Circuits with Quill →Class10 Electricity Circuits questions and exercises with answers
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Worked practice questions
Joule heating formula gives heat H as:
- H = IRt
- H = V/Rt
- H = VRt
- H = I²Rt
Show answer and solution
Correct answer: D. H = I²Rt
H = I²Rt is Joule's law of heating.
Heat dissipated in a resistor equals current squared times resistance times time.
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