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۔
ایک نوری سال کا تعلق ____ سے ہے؟
- Time
- Distance
- Frequency
- None of these
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Explanation
Light year refers to speed of light expressed in miles per year
(it is about ten trillion kilometers or six trillion miles).
Light year is a unit of distance.
Light Year: the distance that light can travel in one year.
The distance light travels in one year is known as the light year.
1 light year is equal to 9.5 x 10^12 km
بجلی کے خلاف مزاحمت کا ایس آئی یونٹ _____ ہے؟
- Volt
- Ohm
- Ampere
- Farad
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Explanation
The SI unit of electric resistance is the ohm (Ω).
1 Ω = 1 V/A.
while
The SI unit of resistivity is an ohm-meter.
- Hertz
- Metre
- Meter Per Second
- None of these
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Explanation
The hertz is the unit of frequency of one cycle per second.
symbol: hertz (Hz)
Hertz in honor of the German physicist Heinrich Hertz
hertz in the International System of Units (SI)
frequency is defined as one cycle per second
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دباؤ کی ایس آئی یونٹ کیا ہے؟
- Henry
- Pascal
- Joule
- None of these
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Explanation
The SI unit of pressure is Pascal (represented as Pa)
in SI base units, one kilogram per meter per second squared (N/m2 or kg m-1s-2)
Definition of Pressure: Pressure can be defined as the force acting per unit area.
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The SI unit of energy/work is the joule (J)
The SI unit of charge is Coulomb
The Pascal is the SI-derived unit of pressure
The ampere, symbol A, is the SI unit of electric current.
The SI unit of power is the watt, one joule per second.
The SI unit of electric resistance is the ohm (Ω).
The SI unit of temperature as per the International System of Units is Kelvin
Unit of torque: newton metre (N m)
The SI unit of velocity is a meter per second (m/s).
The SI unit of acceleration is meters/second2 (m/s2)
ND23-9-2023
انڈکٹنس کی پیمائش کی اکائی کیا ہے؟
- Henry
- Watt
- Light
- Tesla
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Explanation
The unit of measurement for inductance is the henry (H).
It is the International System of Units (SI) unit.
The henry is named after Joseph Henry, the physicist who independently discovered inductance.
برقی چارج کس کی اکائی میں ماپا جاتا ہے؟
- Ohm
- Coloumb
- Ampere
- Watt
- None of these
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Explanation
The SI unit of electric charge is the coulomb, represented by the symbol C.
One coulomb is the amount of charge that passes through a conductor carrying one ampere of current for one second.
It's also equal to the charge of about 6.24 quintillion electrons or protons.
برقی رو کا SI یونٹ کیا ہے؟
- Watt
- Volt
- Ampere
- Coloumb
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Explanation
The SI unit of electric current is the ampere (symbol: A).One ampere equals one coulomb of charge passing a point per second.Named after André-Marie Ampère (1775–1836), a French physicist and mathematician.
پتھر کس پیمائش کی اکائی ہے؟
- Length
- Weight
- Area
- Volum
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Explanation
The use of "stone" as a weight unit is less common today but still used in certain contexts.
A stone is a unit of mass measurement in the British and English imperial systems.
It is equal to 14 avoirdupois pounds, or about 6.35 kilograms.
The symbol for stone is st.
- Newton
- Joule
- Watt
- Metre
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Explanation
The SI unit of force is the Newton, symbol N.
The base units relevant to force are:
- The metre, unit of length — symbol m
- The kilogram, unit of mass — symbol kg
- The second, unit of time — symbol s
ایک ہارس پاور کس کے برابر ہے؟
- 746 watt
- 735 watt
- 725 watt
- 700 watt
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Explanation
A power level of 1 hp is approximately equivalent to 746 watts (W) or 0.746 kilowatts (kW).
To convert from horsepower to watts, multiply by 746.
To convert from watts to horsepower, multiply by 0.00134.
To convert from horsepower to kilowatts, multiply by 0.746.
To convert from kilowatts to horsepower, multiply by 1.34.
AGM 24-12-2022