The ratio arms of the Kelvin bridge (shown) are R1 = R2 = b = a = 350 12. The galvanometer has an internal resistanceof 350 12 and a current sensitivity of 160 mm/ MA. The unknown resistance Rx = 0.1005 12 and the standardresistance is set a 0.1000 12. A dc current of 4 A is passed through the standard resistance from a 2.2 V battery in serieswith a rheostat. The resistance of the yoke may be neglected (Ry = 0 which is a good approximation for this problem).Answer the following questions: E Hile 09 0 win R3 b. IA) the deflection of the galvanometer mm The resistanceunbalance required to produce galvanometer deflection of 1 mm

Step 1:(A) The deflection of the galvanometer (in mm):The deflection of the galvanometer can be…

Answered: The ratio arms of the Kelvin bridge…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...

See similar textbooks

Similar questions

Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew = 2R0) while the voltage is adjusted such that the current is constant, what are the ratios (a) Pnew/P0 and (b) Vnew/V0? If, instead, the resistance is held constant while Pnew = 2P0, what are the ratios (c) Vnew/V0, and (d) Inew/I0?
A copper wire of resistance R = 24 Q is connected to a source of voltage that increases with time as AV(t) = Vo(1 - e-at), where Vo = 130 V and a = 0.62 s1. P=Vo²/R (1-e¯at)2 Calculate the energy dissipated by the resistor in joules during the first t = 1.75 s.
In (Figure 1), the battery has negligible internal resistance and EMF = 44.0 V. R1 = R2 = 3.40 Ω and R4 = 3.70 Ω. What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 275 WW?
The internal resistance of a high voltage power supply is 4 MΩ and the output is set so that the potential difference across the output when on open circuit is 1800 V? A load resistor RL = 500 kΩ is connected across the supply. What is the current flowing in the load resistor?
Question 4. (a) If a battery with a 0.100 internal resistance supplies 15.0 W of total power with a 9.00 V terminal voltage, determine the current I and the power delivered to the load resistor. (b) In the electric circuit of Figure 2, the current = 3.0 A and the values of e and Rare unknown. What are the currents I, and I3? 24 V 300 6.00 Figure 2: Electric cireuit diagram for Question 4 b
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 Rp
The internal resistance of a high voltage power supply is 4 MO and the output is set so that the potential difference across the output when on open circuit is 1800 V? A load resistor RL = 500 kn is connected across the supply. What is the current flowing in the load resistor?
A storage battery has an emf of 6.7 V and internal resistance of 0.50. Compute for the terminal voltage of the battery when it is being charged with 2.0 A.
In the circuit shown below, Vs = 60 V, R1 = 7 Q, R2 =10 V, R3 = 6 Q and R4 = 6 Q. The Thevenin equivalent of this circuit consists of a voltage source Vth and series resistance RTh. FInd Vth and Rth and hence determine the current that will flow through a 50 Q resistor connected between points A and B. Give your answer in Amps to three decimal places. RTh I R3 R2 TA Vs VTh B Next > < Previous R4 R1 That -A B
A 200-volt electromotive force is applied to an RC-series circuit in which the resistance is 1000 ohms and the capacitance is 5 x 10-6 farad. Find the charge q(t) on the capacitor if i(0) = 0.2. q(t) = Determine the charge at t = 0.004 s. (Round your answer to five decimal places.) coulombs Determine the current at t = 0.004 s. (Round your answer to five decimal places.) amps Determine the charge as t → ∞.
A battery with an emf of 24 V and unknown internal resistance r is connected to a 6.0 W load resistor RL such that a current of 3.0 A flows through the load resistor. The output voltage of the battery (terminal voltage) is:
A battery with EMF of 20 V and an internal resistance, r = 0.02 ohms is connected to the load resistances, R1 = 115 ohms, R2 = 147 ohms and R3 = 25 ohms. Determine the total current flowing in the circuit.

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS