Complete the following sentences.
1. An ideal fuel should not ...................... .
2. The substance which Low ignition temperature ................... .
3. Middle zone of the candle flame ....................... .
4. On burning, solid fuels ................. .
5. Carboxyhemoglobin is formed ..................... .
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Answers
Answer:
a
Explanation:
Length of the wire on which force is experienced, 25 cm.
The direction of current in Q and R wires are in opposite direction so, force of repulsion F will act on Q towards right side.
Similarly, it will be in left hand side so resultant force will be F.
Thus,
F = F1 - F2
Finding F1,
➡\dfrac{(2 \times {10}^{ - 7})(30 \times 10) }{3 \times {10}^{ - 2} } (0.25)
3×10
−2
(2×10
−7
)(30×10)
(0.25)
➡4.5 \times {10}^{ - 3}4.5×10
−3
Finding F2 ,
➡\dfrac{(2 \times {10}^{ - 7})(20 \times 10) }{5 \times {10}^{ - 2} } (0.25)
5×10
−2
(2×10
−7
)(20×10)
(0.25)
➡2\times {10}^{ - 3}2×10
−3
Fnet = F1 - F2
➡4.5 \times {10}^{ - 3} - 2 \times {10}^{ - 3} = 2.5 \times {10}^{ - 3}4.5×10
−3
−2×10
−3
=2.5×10
−3
≈ 2.5 × 10^-3 N
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