INTERNATIONAL SYSTEM OF UNITS (SI)
International System of Units (SI)
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- R = V/I
- R = V/II
- R = V/III
- R = VV/II
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Explanation
The formula for resistance is R = V/I.
This formula is derived from Ohm's law,
which states that the electrical resistance of a circuit is the ratio between the voltage applied to the current flowing through it
کپیس ٹینس کا یونٹ کس کے برابر ہے
- F
- C/V
- V/C
- None of these
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Explanation
(SI) of capacitance is equivalent to 1 coulomb per volt (C/V).
The farad (symbol: F) is the unit of electrical capacitance
Additional information:
Basic electrical quantity unit.
| Quantity | Unit |
| Capacitance | Farad |
| Charge | Coulomb |
| Conductance | Siemens |
| Current | Ampere |
| Energy | Joule |
الیکٹرک فیلڈانٹینسٹی کی شدت کا فارمولا کیا ہے۔
- f/p
- f/q
- f/w
- f/u
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Explanation
The formula of electric field intensity is E= f/q
where F = force and q = small test charge
The electric field intensity at any point is the strength of the electric field at the point.
It is defined as the force experienced by the unit positive charge placed at that point
کیسیٹرائٹ\
مندرجہ ذیل میں سے ایک ایسک ہے؟
- Iron
- Zinc
- Copper
- Tin
- All of these
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Explanation
Cassiterite is an ore.
Cassiterite is also called tinstone and has molecular formula of SnO2.
Cassiterite is heavy, metallic, hard tin dioxide that is the major ore of tin.
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ایک بار کیا پیمائش کرنے کے لئے نظام بین الاقوامی یونٹ ہے؟
- Temperature
- Energy
- Pressure
- Air
- All of these
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Explanation
The bar is a metric unit of pressure, but not part of the International System of Units (SI).
Bar is defined as 100,000 Pa (100 kPa)
اخذ شدہ اکائیوں کی کتنی قسمیں ہیں؟
- 7
- 15
- 20
- 22
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Explanation
There are 22 named SI-derived units.
Some, like Newton and the joule, are named for prominent scientists.
But many others — like area and volume — are simply labeled with the algebraic relationship of their base units!
- force
- magnetic flux
- unit
- none
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Explanation
The tesla is the unit of magnetic flux density (also called magnetic B-field strength)
One tesla is equal to one Weber per square meter.
tesla
Unit system: SI
Symbol: T
Named after: Nikola Tesla
- Ikm= 1000s
- 1Kw = 1000w
- 1kw = 100w
- none
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Explanation
the Formula for Calculating Watts Into Kilowatt-Hours: kWh = (watts × hrs) ÷ 1,000.
Kilowatt-hour is the unit of ENERGY.
Watt or Kilowatt is the unit of power.
Kilowatt-hour (KWh) is a unit of Electrical Energy.
We know that, Power×time=Energy
⇒ Kilo-Watt×Hour=Energy
1KWh is electrical energy consumed when an electrical equipment of power 1 KiloWatt is operated for 1 Hour.
- N
- M
- K
- J
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Explanation
In the metric system, the SI unit of length is a meter which is
defined as: “The length of the path traveled by light in a vacuum within 1⁄299792458 seconds.”
Common symbols: l
ND18-9-2023
- j
- s/j
- j/s
- none of these
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Explanation
Watts are defined as 1 Watt = 1 Joule per second (1W = 1 J/s)
1 kW = 1000 J/s.
Additional Information:
The SI Unit of power is Watt.
1 Watt = 1 Joule/second.
1 Joule = 1 Newton-meter
1 Watt = 1 Newton=meter/second
NA21-8-2023
