Question: Two resistances 100Ω ± 5Ω and 150Ω ± 15Ω are connected in series. If the deviations are standard deviations, the resultant resistance can be expressed as:
Answer:
MCQ: Two resistances 100Ω ± 5Ω and 150Ω ± 15Ω are connected in series. If the deviations are standard deviations, the resultant resistance can be expressed as:
Correct Answer:
A. 250Ω ± 20Ω
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Related Questions
- 1. if the result of a measurement is expressed as x̅ ± 3σ where x̅ = mean value and σ = standard deviation ,it means that :
- 2. A batch of resistors have a mean value of 100 Ω and a standard deviation σ = 0.2 Ω. The probability corresponding to 2σ is 0.9546. The value of odds that randomly selected resistor will lie within 100.00 ± 0.40 Ω is:
- 3. According to Chauvenet’s criterion, a reading out of set of <em>n </em>reading should be rejected if the probability of obtaining the particular deviation from mean is :
- 4. if the confidence level is 0.95, then the value lying outside the confidence interval are:
- 5. Uncertainty distribution is used for:
- 6. A Quantity whose magnitude has a definite repeating time cycle is called a :
- 7. Dynamic response consists of:
- 8. The following are the desirable dynamic characteristics of a measurement system:
- 9. The output of the system is given by the following equation:<em>y= ax + b</em>Where <em>x</em> is the input and <em>a</em> and <em>b</em> are constants.The system exhibits:
- 10. The dynamic response of a system is given by the following differential equation :d<sup>3</sup>a<sub>3</sub> ((d^3 c(t))/(dt^3 )) + a<sub>2</sub> ((d^2 c(t))/(dt^2 ))+ a<sub>1</sub> (dc(t)/dt) + a<sub>0</sub>c(t)= b<sub>2</sub> ((d^2 r(t))/(dt^2 ))+ b<sub>1</sub> (dr(t)/dt) + b<sub>0</sub>r(t) Where c(t) and r(t) are respectively the output and input and a<sub>3,</sub> a<sub>2,</sub> a<sub>1,</sub> a<sub>0,</sub> b<sub>2,</sub> b<sub>1,</sub> b<sub>0 </sub>are constants. It is a :
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