A moving-coil instrument, which gives full-scale deflection with 15 mA, has a copper coil having a resistance

Fantastic news! We've Found the answer you've been seeking!

Question:

A moving-coil instrument, which gives full-scale deflection with 15 mA, has a copper coil having a resistance of 1.5 Ω at 15 °C, and a temperature coefficient of 1/234.5 at 0 °C, in series with a swamp resistor of 3.5 Ω having a negligible temperature coefficient.
Determine:

(a) the resistance of shunt required for a full-scale deflection of 20 A;

(b) the resistance required for a full-scale deflection of 250 V. If the instrument reads correctly at 15 °C, determine the percentage error in each case when the temperature is 25 °C.

Posted Date: Dec 09, 2021 11:26 PM

See More Questions

A 20-k/V voltmeter reads 10 V full scale, (a) What series resistance is required to make the meter read 50 V full scale? (b) What power will the series resistor dissipate when the meter reads full...
A 15.0- resistor and a coil are connected in series with a 6.30-V battery with negligible internal resistance and a closed switch. (a) At 200 ms after the switch is opened the current has decayed to...
Determine Z and V for steam at 250 C and 1.800 kPa by the following: (a) The truncated virial equation [Eq. (3.40)] with the following experimental values of virial coefficients: (b) The truncated...
Jogger 1 is travelling east at 6 . 5 m / s and has a mass of 8 2 kg . Jogger 2 is travelling north at 5 . 8 m / s and has a mass of 5 4 . 5 kg . One of the joggers has their head down and doesnt see...
What rights are protected under the Bill of Rights even though they are not spe-cifically listed in the document?
1.Should information gathered be privileged? 2. Does this privilege give corporations an advantage? 3. Do you agree with the SCOTUS decision?
The variance process in the Heston model satisfy a CIR process: \[d V_{t}=\kappa\left(\bar{V}-V_{t} ight)+\sigma \sqrt{V_{t}} d W_{t}\] Use Ito to calculate the dynamics of the volatility process...
The income statement of Health 24 City Club for the month ending August 31 shows Membership Dues Revenues of $25,000; Salaries Expense of $9,300; Repairs and Maintenance Expense of $2,400; and Net...
For the current year, Maple Corporations book income before federal income tax was $100,000. Included in this $100,000 were the following: Provision for state income tax $1,000 Interest earned on...
Illustrate how fine-line inventory classification can be used with product and market segments. What are the benefits and considerations when classifying inventory by product, market, and...
At 15:00 on February 3, 2020, the CSI 300 stock price index is 3688.36, the CSI 300 stock index futures price expiring in February 2020 is 3591.20, and the CSI 300 stock index call and put options...
Find the equation of the line tangent to $y=x^{2}$ at $x=1$.
Evaluate the area function for the functions given in Problems 1-8. Let $y=x+5$; find $A(x)$.
What is a derivative?
The graph in Figure 18.20 shows company output as a function of the number of workers. In Problems 9-12, find the average rate of change of output for the given change in the number of workers....
Find the antiderivative in Problems 13-14. $\int 16 x d x $
Consider a number of particles with different speeds. There are 10 particles and they are all identical: two have a speed of 26 m/s; four have speeds of 35 m/s; two have speeds of 50 m/s, and two...
Juanita owns a home in Richardson, TX. She purchases a Homeowners Policy (HO-3) from Farm State Ins. Co. The policy provides $100,000 in liability coverage (coverage E) and $5,000 in Med Pay coverage...
A stock price is governed by \[\frac{\mathrm{d} S}{S}=\mu \mathrm{d} t+\sigma \mathrm{d} z\] where $z$ is a standardized Wiener process. Interest is constant at rate $r$. An investor wishes to...
At the beginning of April one year, the silver forward prices (in cents per troy ounce) were as follows: The carrying cost of silver is about 20 cents per ounce per year, paid at the beginning of...
Suppose that a forward contract on an asset is written at time zero and there are $M$ periods until delivery. Suppose that the proportional carrying charge in period $k$ is $q S(k)$, where...

A moving-coil instrument, which gives full-scale deflection with 15 mA, has a copper coil having a resistance

Question:

Expert Answer:

Part a The shunt resistance required for a full scale deflection of 20 A can be calculated as m1 wh... View the full answer

Students also viewed these electrical engineering questions