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aleksley [76]
3 years ago
13

How can we calculate the e.m.f of the battery?.

Physics
2 answers:
cluponka [151]3 years ago
7 0

Explanation:

The emf is equal to the work done on the charge per unit charge (ϵ=dWdq) when there is no current flowing. Since the unit for work is the joule and the unit for charge is the coulomb, the unit for emf is the volt (1V=1J/C).

Tems11 [23]3 years ago
6 0

Answer:

The EMF or electromotive force is the energy supplied by a battery or a cell per coulomb (Q) of charge passing through it. The magnitude of emf is equal to V (potential difference) across the cell terminals when there is no current flowing through the circuit. (byjus)

Explanation:

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In the circuit described by the diagram, which pair of resistors is connected in parallel?
scoundrel [369]

Option 4 ( R2 and R3 ) is the correct answer.

Explanation:

  • In the below given diagram, we can see a circuit diagram that has four resistors such as R1, R2, R3, and R4.
  • The opening of the circuit is noted as "a" and the ending is noted as "b".
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  • Where all the other resistors such as R1 and R4 are neither connected in parallel nor in series.

Hence we can conclude that Resistor R2 and R3 are the ones that are connected in parallel.

6 0
3 years ago
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Ronch [10]
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3) b) air pressure differences that make air rise or sink

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5) I don't know this one. Sorry :(

6) a) true

7) a) true

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5 0
3 years ago
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8: As a grade-school project, students construct a mobile representing some of the major food groups.
Airida [17]

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m1=0.72kg m2=0.48kg m3=0.98

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so, 5*m2=2.4, m2=0.48 then, m1=0.72

(m1+m2+0.3+0.2)*18=31*m3

1.7*18=31*m3

m3=0.98

4 0
3 years ago
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stiv31 [10]

Answer: It encourages scientists to give convincing evidence for the results

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Talja [164]
Instantaneous speed is measured C. at a particular instant.
Instantaneous refers to one specific moment in time, which is answer C.
6 0
3 years ago
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