Answer: H1:H2 = 1:2.
- A H1:H2 = 1:2
- B H1:H2 = 2:1
- C H1:H2 = 1:4
- D H1:H2 = 4:1
Correct answer: A. H1:H2 = 1:2
Explanation: In series, same current. H = I2 R t. H1/H2 = R1/R2 = 1/2.
In series, the same current flows through both resistors; in parallel, the current splits between branches and the voltage across each resistor is the same.
Concept context
Ohm's law, resistors, Kirchhoff's laws, Wheatstone bridge, and cells.