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WorksheetsSJIT ECE- ELECTRONICS OBJECTIVE TEST-1
Total questions: 15
Worksheet time: 15mins
What is the definition of current?
A. flow of electrons
B. movement of electric charges
C. Both A and B
D. emf
The unit of current is
Ampere
charge
volt
watt
................... is used to measure the current in any circuit.
Voltmeter
Ammeter
Hygrometer
wattmeter
conventional current flow from the .......... to...........
positive , negative
negative , positive
Electric current flows from negative to positive
true
false
with help of ohm's law ,current can be calculated by the formula of .....
I=VR
I= V/R
I=R/V
I=VCR
A potential difference across 24 Ω resistor is 12 V. What is the current through the resistor?
O.5 A
0.6 A
0.7 A
0.8 A
An electronic device has a resistance of 20 ohms and a current of 15 A. What is the voltage across the device?
300V
400V
500V
350
In the circuit shown above, how much current does the ammeter show?
1.25 A
2.25 A
3.25 A
1 A
A resistor has the following coloured markings;
Yellow Violet Red
4700 ohm
5700 ohm
3700 ohm
5000 ohm
Yellow-Violet-Orange-Gold Color Code. WHAT IS RESISTANCE VALUE?
47 kΩ
37 kΩ
67 kΩ
57 kΩ
FIND THE RESISTANCE VALUE?
1 KOHM
2 KOHM
10K OHM
3K OHM
FIND THE RESISTANCE VALUE?
10K OHM
1K OHM
2K OHM
3K OHM
IDENTIFY THE PICTURE?
KCL
KVL
OHMS LAW
SUPERPOSITION LAW
A 5 ohms resistor has 2 Amps of current passing through it. Find the value of voltage soure.
10 V
20 V
15 V
10 MV
