1 |
5 A of current flows through a conductor in 2 minutes, charge in the wire is. |
- A. 500 C
- B. 600 C
- C. 400 C
- D. 10 C
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2 |
Semiconductor diodes are called: |
- A. Ohmic
- B. non ohmic
- C. Both a & b
- D. none of above
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3 |
Heat sensitive resistors are called. |
- A. resistors
- B. Capacitor
- C. Thermistors
- D. Inductors
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4 |
When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows |
- A. 0.20 C
- B. 2.5 C
- C. 5.0 C
- D. 10.0 C
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5 |
The resistivity of two wires is<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">ρ<sub>1</sub> and</span><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">ρ<sub>2</sub> which are connected in series. If there dimentions are same then the equivalent resistivity of the combination will be:</span> |
- A. (<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">ρ<sub>1</sub> +</span><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">ρ<sub>2</sub></span>)
- B. 1/<span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub>1</sub>+ 1/</span><span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub>2</sub></span>
- C. <span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub style="">1</sub>+</span><span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub style="">2</sub></span>/2
- D. <span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub>1/</sub></span><span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">ρ<sub>2</sub></span>
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6 |
For ohmic device the graph between V and I is. |
- A. A straight line
- B. Curve
- C. Hyperbola
- D. Parabola
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7 |
A charged conductor has charge on its. |
- A. Inner surface
- B. Outer surface
- C. Middle surface
- D. Surrounding space
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8 |
The product of resistance and conductance is |
- A. 1
- B. Resistivity
- C. Conductance
- D. Zero
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9 |
mho -m-1 is the unit of. |
- A. Resistance
- B. Resistivity
- C. Conductance
- D. Conductivity
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10 |
Three resistors of resistance R each are combined in various ways, Which of the following cannot be obtained? |
- A. 3 RΩ
- B. 2R /4Ω
- C. R/3Ω
- D. 2R /3Ω
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