(7%) Problem 12: A capacitor with a capacitance of 2.5 F is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor with a resistance of 19 k2, and a battery that has a potential difference of 150 V. S C R H V B Otheexpertta.com A 20% Part (a) Immediately after the switch is closed, what is the voltage drop Vc, in volts, across the capacitor? VC,0 = = || V sin() cos() tan() ()7 8 9 HOME cotan() asin() atan() acotan() sinh() cosh() tanh() cotanh() Degrees Radians acos() E 4 5 6 * 1 2 3 + - 0 END VO BACKSPACE DEL CLEAR Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 3 (4% per attempt) detailed view Submit Hint Feedback I give up! Hints: 4% deduction per hint. Hints remaining: 2 Feedback: 5% deduction per feedback. Submission History All Date times are displayed in Eastern Standard Time Red submission date times indicate late work. Date Time Answer Hints Feedback A 20% Part (b) Immediately after the switch is closed, what is the voltage drop VR, in volts, across the resistor? A 20% Part (c) Immediately after the switch is closed, what is the current, in amperes, through the resistor? A 20% Part (d) Find an expression for the time after the switch is closed when the current in the resistor equals half its maximum value. A 20% Part (e) What is the charge Q, in microcoulombs, on the capacitor when the current in the resistor equals one half its maximum value. HW3 ch20 Begin Date: 9/22/2023 12:01:00 AM -- Due Date: 10/1/2023 11:59:00 PM End Date: 10/1/2023 11:59:00 PM (7%) Problem 13: The figure shows how a bleeder resistor is used to discharge a capacitor after an electronic device is shut off, allowing a person to work on the electronics with less risk of shock. 33% Part (a) What is the time constant of this circuit in seconds? T= || sin() cotan() atan() cos() asin() acotan() cosh() tan() ()7 8 9 acos() E 4 sinh() tanh() cotanh() O Degrees Radians HOME 5 6 1 2 3 + - 0 END . VO BACKSPACE DEL CLEAR Hints: 4% deduction per hint. Hints remaining: 2 Submission History Submit Hint Feedback I give up! Feedback: 5% deduction per feedback. Electronic circuit C 80 F R 250 Otheexpertta.com Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 3 (4% per attempt) detailed view All Date times are displayed in Eastern Standard Time Red submission date times indicate late work. Date Time Answer Hints Feedback 33% Part (b) How long will it take in seconds to reduce the voltage on the capacitor to 0.250% (5% of 5%) of its full value once discharge begins? 33% Part (c) If the capacitor is charged to a voltage Vo through a 110 Q2 resistance, calculate the time in ms it takes to rise to 0.865V0. (7%) Problem 14: You measure the emf of a cell by balancing it with a potentiometer with a standard emf of 12.0 V and resistance of Rs = 2.45 92. Randomized Variables Rx = 5.1 Q R = 2.45 Q What is the emf of the unknown cell, in volts, if it balances at a resistance of Rx = 5.1 Q? Ex = || sin() cotan() atan() cos() asin() acotan() sinh() tan() acos() () 7 8 9 HOME E 4 5 6 * 1 2 3 cosh() tanh() cotanh() +- 0 END . O Degrees Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: (4% per attempt) detailed view - (7%) Problem 15: Consider the circuit shown, where V = 1.6 V, V2 = 2.40 V, R = 1.7 kQ, R = 1.5 k, and R3 = 1.5 ks2. A 25% Part (a) What is the current through resistor R in milliamperes? I = || mA R V V R R3 www www HOME Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 3 (4% per attempt) detailed view sin() cos() tan() ()7 89 cotan() atan() asin() acotan() sinh() acos() E 4 5 6 1 2 3 cosh() tanh() cotanh() + - 0 END Degrees Radians VO BACKSPACE DEL CLEAR Hints: 4% deduction per hint. Hints remaining: 1 Submission History Submit Hint Feedback I give up! Feedback: 5% deduction per feedback. All Date times are displayed in Eastern Standard Time Red submission date times indicate late work. Date Time Answer 25% Part (b) What is the current through resistor R2 in milliamperes? A 25% Part (c) What is the power dissipated in resistor R3 in milliwatts? Hints 25% Part (d) What is the total power in milliwatts delivered to the circuit by the two batteries? Feedback