3) A new battery has a Voltage of 36.4 V [8] before being installed in a toy. Once the battery is placed in the toy and the toy is turned on, the battery's Terminal Voltage drops down to 34.2 V while a current of 855 mA passes through the battery. Calculate the battery's internal resistance [r, {9}].
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- Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.Te-Learning Portal Courses - Reports e-Services ▼ Academic Departments - ETC - CIMS Salim During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. ww R on Battery The measured value of the current is I = 3.1 ± 0.2 A and that of the voltage is V = 14 0.5 V. The resistance of the circuit (in N) can be calculated using the formula, R = V/I, Calculate the, a) Resistance (in 2) = b) Fractional uncertainty in the resistance = c) Absolute uncertainty (in 2) in the resistance=In the circuit below the voltage of the battery is 40 V. C1 = 20.0μF, C₂ = 5.0 μF, C3 = 30.0 μF, C₁ = 30.0 uF. Find the equivalent capacitance in microfarad. Find the voltage for the capacitor C₂. HH HH 30% T TE 1 pts
- The value of the voltage terminals of the battery is 4 V. There is a current of 3.0 A in the battery from high potential to low potential. If you reverse the direction of the current with a magnitude of 5.7 A, the voltage accross the battery will be 27 V. Calculate the internal resistance of the battery. Write your answer in units of Ohm. (Your answer must include 2 digit after the decimal point. Maximum of %1 of error accepted in your answer.)V R = 102 R2 = 152 %3D V (А + V pattery 3. Two resistors with values of 10 Q and 15 Q are connected in series, as shown above. A voltmeter connected across R2 reads 30 V. (1). Determine the current passing through the circuit. (ii) What are the voltages of the battery and across R1.Problem 10: If you try and measure the voltage of a battery with a voltmeter connected in series, you won't get a completely accurate measurement because of the internal resistance of the battery. To see how large this effect is, consider trying to measure the terminal voltage of a 1.585 V alkaline cell having an internal resistance of 52 2 by placing a 0.95 k2 voltmeter across its terminals. Randomized Variables ww R = 0.95 k2 r = 52 Q r emf Part (a) What current flows in A? Numeric : A numeric value is expected and not an expression. I = Part (b) Find the terminal voltage in V. Numeric : A numeric value is expected and not an expression. V = Part (c) To see how close the measured terminal voltage is to the emf, calculate their ratio. Numeric : A numeric value is expected and not an expression. V/e =
- Four resistors, 10 Ω , 14 Ω , 27 Ω , and 40 Ω , are in series. Please help me find the potential difference across each resistor when the series combination is across a 7.5 V battery? The result should be expressed using two significant figures separated by commas.2. An external resistor with resistance R is connected to a battery that has emf & and internal resistance r. Let P be the electrical power output of the battery. By conservation of energy, P is equal to the power delivered to the external resistor. r E ww*|- R (a) Find P in terms of E, r, and R. (b) If ε = 40 V and r = 2 2, calculate the power delivered to the external resistor for six different values of R: 0.25 Ω, 1 Ω, 1.75 Ω, 2.5 Ω, 3.25 Ω, and 4 Ω. (c) In Part (b), you should have found that P does not increase monotonically as R increases. Using the equation for P from Part (a), find the value of R in terms of r such that P is maximized. What is the maximum value of P in terms of & and r?When a R = 88.7 Q resistor is connected across a 11.1 V battery, a current of 112.8 mA flows. What is the internal resistance of the battery and Terminal voltage of the battery? (1) E(MF) Rexternal external Rinterna (a) internal resistance of the battery(in 2) = (b) Terminal voltage of the battery in V = .--- Battery
- Page 1 of 4 1. A resistor network is connected to an ideal battery. RA RB All resistors are 10.0 ohms The battery voltage Vb = 100.0 volts Calculate the current in resistor RD in amperes. V, 74°F ( ツ Rc Rpearning Portal Courses Reports - e-Services - Academic Departments - ETC CIMS - During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured. [Voltage is measured in Volt (V) and current in Ampere (A)]. ww R Battery The measured value of the current is I = 3.5 ± 0.1 A and that of the voltage is V = 13 + 0.5 V. The resistance of the circuit (in Q) can be calculated using the formula, R = V/I, Calculate the, a) Resistance (in Q) = b) Fractional uncertainty in the resistance = C) Absolute uncertainty (in Q) in the resistance= Finish attenQuestion 27 Given two batteries: one with voltage V and internal resistance r₁; another with also voltage V and internal resistance r2. Which of the following is true if we connect them in series facing the opposite direction? O No voltage will remain, while the total internal resistance will be r₁ + 12. O The total voltage will be -V, while the total internal resistance will be r₁ + 2. O The total voltage will be -2V, while the total internal resistance will be r₁ + r2- O The answer can be found on the other choices.