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۔
- ampere meter²
- ampere meter
- ampere/meter
- ampere² meter
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Explanation
The standard SI unit for magnetic dipole moment is the ampere-square meter (A⋅m²).
It can also be expressed in terms of energy and magnetic field strength, resulting in joules per tesla (J/T), which is equivalent to A⋅m².
- Power
- Temperature
- Specific heat
- Work
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Explanation
- Heat has the same units as work, energy, and enthalpy
Standard Units
- Joule (J): Standard SI unit for heat, work, and energy.
- Calorie (cal): Metric unit for heat and food energy
- Newton-meter (N·m): Mechanical unit equivalent to a Joule.
بجلی کے اہم سپلائی میٹر ‘کلو واٹ گھنٹے’ کے اکائیوں میں پیمائش کرتے ہیں ، یہ _____ کی اکائی ہے؟
- Current
- Power
- Energy
- None of these
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Explanation
Kilowatt-hour (kWh) is a unit of electrical energy.
It represents the energy consumed when 1 kilowatt of power is used for 1 hour.
نوجوان ماڈیولس ______ کی اکائیوں میں ماپا جاتا ہے؟
- Nm⁻²
- Pa
- kgm⁻³
- None of these
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Explanation
Young's Modulus is the ratio of stress to strain and measures stiffness of a material.
Since stress is measured in N/m² (or Nm⁻²) and strain is dimensionless, the unit remains Nm⁻².
- Joule
- Energy/Heat
- Work
- None of these
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Explanation
Joule is a unit of work or energy or heat.
Joule is a scalar quantity.
SI base units: kg⋅m2⋅s−2
Symbol: J
Additional Information:
It is equal to the work done by the force of one newton acting through one meter.
Named in honor of the English physicist James Prescott Joule.
Joule equals 107 ergs or approximately 0.7377 foot-pounds.
- Diet
- Food intake
- Quality of heat
- None of these
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Explanation
A calorie is a unit of energy, specifically used to measure heat energy.
1 calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C.
In dietary terms, we use kilocalories (kcal) — where 1 kcal = 1000 calories — but it still measures energy, not diet or food itself
جسمانی مقدار "تسلسل" میں وہی جہت ہے جو ______ کی طرح ہے؟
- Momentum
- Force
- Power
- None of these
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Explanation
Impulse is defined as Force × Time (F × t), and its unit is Ns (Newton-second).Momentum is Mass × Velocity (m × v), which also has the unit Ns, meaning both have the same dimensions.
فیتھم ______ کی پیمائش کی اکائی ہے؟
- Sound
- Depth
- Distance
- Frequency
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Explanation
Fathom is used to measure the depth of water or the length of a nautical rope or cable.
A fathom is six feet, or 1.8288 meters.
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.
ایس آئی کتنی بنیادی اکائیوں سے بنا ہے؟
- 7
- 6
- 19
- 20
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Explanation
The SI is made up of 7 base units
that define the 22 derived units with special names and symbols, which are illustrated in NIST SP 1247, SI Base Units Relationship Poster.
