A circuit is constructed consisting of a 6.0 V battery, two resistors (7ohm,50ohm ) connected in series with the battery, and three resistors (200ohm, 150ohm, 170ohm) connected in parallel with each other. This three-resistor combination is in series with the first two resistors and the battery. (a) Draw a diagram of the circuit. (b) What is the current through the battery in the circuit? (Assume two significant digits in each resistance value.) (c) What is the current through the 150hm resistor? (d) What is the potential difference across the 50ohm resistor?
KVL and KCL
KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.
Sign Convention
Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.
A circuit is constructed consisting of a 6.0 V battery, two resistors (7ohm,50ohm ) connected in series with the battery, and three resistors (200ohm, 150ohm, 170ohm) connected in parallel with each other. This three-resistor combination is in series with the first two resistors and the battery.
(a) Draw a diagram of the circuit.
(b) What is the current through the battery in the circuit? (Assume two significant digits in each resistance value.)
(c) What is the current through the 150hm resistor?
(d) What is the potential difference across the 50ohm resistor?
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