Math Problem Statement
in the circuit shown below, the switch is kept closed for a long duration. At t = 0, the switch is opened.If X = 60 kΩ and Y = 35 Volts, then i (t) at t = 0- is ______ mA
Solution
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Math Problem Analysis
Mathematical Concepts
Electrical circuits
Steady-state analysis
Transient response of RC circuits
Formulas
Ohm's Law: V = IR
Series resistance formula: R_total = R1 + R2
Capacitor behavior in DC circuits (open circuit in steady-state)
Theorems
Ohm's Law
Basic RC circuit theory
Suitable Grade Level
Grades 11-12 (High school Physics or early university level Electrical Engineering)
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