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Resistor and Resistance - Railway ALP & Technician Practice Set 1

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Sample Questions from Resistor and Resistance - Railway ALP & Technician Practice Set 1

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Q1. What is electrical resistance?

विद्युत प्रतिरोध क्या है?

A. The property of a material that opposes the flow of electric current
पदार्थ का वह गुण जो विद्युत धारा के प्रवाह का विरोध करता है

B. The ability of a material to produce electric charge
पदार्थ की विद्युत आवेश उत्पन्न करने की क्षमता

C. The rate of flow of electric charge
विद्युत आवेश के प्रवाह की दर

D. The electrical energy consumed per second
प्रति सेकंड उपभोग की गई विद्युत ऊर्जा

Q2. What is the SI unit of electrical resistance?

विद्युत प्रतिरोध का SI मात्रक क्या है?

A. Volt
वोल्ट

B. Ampere
एम्पियर

C. Ohm
ओम

D. Coulomb
कूलाम

Q3. Which formula represents the resistance of a uniform conductor?

एक समान चालक के प्रतिरोध को कौन-सा सूत्र प्रदर्शित करता है?

A. R = ρL/A
R = ρL/A

B. R = ρA/L
R = ρA/L

C. R = LA/ρ
R = LA/ρ

D. R = ρLA
R = ρLA

Q4. What is the SI unit of resistivity?

प्रतिरोधकता का SI मात्रक क्या है?

A. Ohm
ओम

B. Ohm metre
ओम-मीटर

C. Siemens
सीमेंस

D. Volt per metre
वोल्ट प्रति मीटर

Q5. If the length of a wire is doubled without changing its area and material, its resistance becomes:

यदि किसी तार की लंबाई दोगुनी कर दी जाए तथा क्षेत्रफल और पदार्थ अपरिवर्तित रहें, तो उसका प्रतिरोध कितना होगा?

A. Half
आधा

B. Double
दोगुना

C. Four times
चार गुना

D. Unchanged
अपरिवर्तित

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