This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Here's the analysis of the given electric circuit: i) The equivalent resistance of the network: Step 1: Identify the resistors and their connection. The circuit shows two resistors, R_1 = 60 and R_2 = 30 , connected in parallel. Step 2: Calculate the equivalent resistance (R_eq) for parallel resistors. The formula for two resistors in parallel is: R_eq = (R_1 R_2)/(R_1 + R_2) Step 3: Substitute the values and calculate the equivalent resistance. R_eq = (60 × 30 )/(60 + 30 ) R_eq = (1800 ^2)/(90 ) R_eq = 20 Step 4: Select the correct option. Comparing with the given options: A) 30 , B) 60 , C) 20 , D) 90 . The correct option is C) 20 . ii) The total electric current I in the circuit: Step 1: Identify the total voltage and equivalent resistance. The dry cell provides a voltage V = 3 V. The equivalent resistance of the circuit is R_eq = 20 (calculated in part i). Step 2: Apply Ohm's Law to find the total current. Ohm's Law states I = (V)/(R_eq). Step 3: Substitute the values and calculate the total current. I = 3 V20 I = 0.15 A Step 4: Select the correct option. Comparing with the given options: A) 0.1 A, B) 0.05 A, C) 0.15 A, D) 0.00 A. The correct option is C) 0.15 A. That's 2 down. 3 left today — send the next one.