MCQOPTIONS
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MCQOPTIONS
This section includes 213 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
One of the most common applications of a potentiometer is as an adjustable voltage divider, also known as |
| A. | voltage control |
| B. | current control |
| C. | volume control |
| D. | divider control |
| Answer» D. divider control | |
| 202. |
If a voltage is connected between contacts 2 and 3 in the given circuit, which resistors will carry current? |
| A. | All twelve resistors will carry current. |
| B. | Only R6 and R11 will carry current. |
| C. | Only R2, R4, R6, and R11 will carry current. |
| D. | Only R3, R6, R9, and R12 will carry current. |
| Answer» D. Only R3, R6, R9, and R12 will carry current. | |
| 203. |
How much current flows in the circuit in the given circuit? |
| A. | 20 A |
| B. | 60 A |
| C. | 80 A |
| D. | 140 A |
| Answer» B. 60 A | |
| 204. |
The ______ determines whether connected resistors are in series, parallel, or series-parallel? |
| A. | current flow |
| B. | power source |
| C. | voltage flow |
| D. | wattage source |
| Answer» B. power source | |
| 205. |
A short circuit has: |
| A. | too much resistance |
| B. | no conductance |
| C. | no resistance |
| D. | low current |
| Answer» D. low current | |
| 206. |
What determines the total resistance in a series circuit? |
| A. | the largest resistor |
| B. | the sum of the resistors |
| C. | the largest resistor minus the smaller |
| D. | the smallest resistor |
| Answer» C. the largest resistor minus the smaller | |
| 207. |
Power is defined as: |
| A. | the rate at which work is done |
| B. | work |
| C. | the conversion of energy |
| D. | joules |
| Answer» B. work | |
| 208. |
If the resistance total in a series circuit doubles, current will: |
| A. | be the same |
| B. | be doubled |
| C. | reduce source voltage |
| D. | be halved |
| Answer» E. | |
| 209. |
What is the dc source voltage? |
| A. | 78 V |
| B. | 39 V |
| C. | 13 V |
| D. | 0 V |
| Answer» B. 39 V | |
| 210. |
An 8-ohm resistor is in series with a lamp. The circuit current is 1 A. With 20 V applied, what voltage is being allowed for the lamp? |
| A. | 4 V |
| B. | 8 V |
| C. | 12 V |
| D. | 20 V |
| Answer» D. 20 V | |
| 211. |
The total resistance of a series circuit is equal to the average of all the resistance values. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» C. 1 | |
| 212. |
Which equation determines individual resistor voltage drop? |
| A. | V x R |
| B. | I2 x R |
| C. | V x I |
| D. | I x R |
| Answer» E. | |
| 213. |
What is the current flow through R1, R2, and R3? |
| A. | 1A, 1A, 1A |
| B. | 1A, 2A, 3A |
| C. | 3A, 3A, 3A |
| D. | 3A, 2A, 1A |
| Answer» B. 1A, 2A, 3A | |