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katen-ka-za [31]
3 years ago
10

Use the image to answer the question.

Chemistry
1 answer:
Roman55 [17]3 years ago
3 0
Answer:

A1+3

Explanation:

A1+3 is the most common ion of aluminum.
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The colour imparted to a flame by calcium ion?
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Which substance is a diatoic molecule?<br> A] He<br> B] O2<br> C] CO2<br> D] H2O
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6 0
3 years ago
A student has four resistors. Each resistor has a resistance of 100 ohms.
ValentinkaMS [17]

Answer:

The minimum resistance is 25 ohms.

Explanation:

Resistance of each resistor is 100 ohms. When resistors are connected in parallel, the equivalent resistance is lowest. For parallel combination, the equivalent resistance is given by :

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Here, all resistors are 100 ohms. So,

\dfrac{1}{R}=\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}\\\\R=25\ \Omega

So, the minimum resistance is 25 ohms.

7 0
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