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S_A_V [24]
3 years ago
14

What is it that makes a battery rechargeable? How is it different from a regular battery?

Engineering
2 answers:
mart [117]3 years ago
7 0
The difference between both batteries is that the chemical reaction is reversible with a rechargeable battery: when electrical energy from an external source (e.g., a charger) is applied to the battery's secondary cell, the negative-to-positive electron flow that occurs during discharge gets reversed.
BaLLatris [955]3 years ago
5 0

Answer:

"A simple battery is comprised of multiple cells attached in series. A cell is made up of three parts: two electrodes (an anode and cathode) in a chemical called an electrolyte. A rechargeable battery is capable of reversing the chemical reaction by forcing a current in the opposite direction."

Explanation:

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A baseband signal with a bandwidth of 100 kHz and an amplitude range of±1 V is to be transmitted through a channel which is cons
soldi70 [24.7K]

Answer:

Baseband is a signal that has a near zero frequency range. In telecommunication and signal processing, baseband are transmitted without modulation.

Explanati

7 0
3 years ago
Read 2 more answers
Corrective maintenance _________________________.​
andrew-mc [135]

Answer:

b. ​diagnoses and corrects errors in an operational system

Explanation:

Corrective maintenance is one that is performed with the purpose of repairing faults or defects that occur in equipment and machinery.  As such, it is the most basic way of providing maintenance, as it simply involves repairing what has broken down. In this sense, corrective maintenance is a process that basically consists of locating and correcting faults or damages that are preventing the machine from performing its function in a normal way.

3 0
4 years ago
A classroom which normally contains 26 people is to be air- conditioned. A person in the classroom typically dissipates heat at
lutik1710 [3]

Answer:

Explanation:

Heat dissipated by 26 people per second

= 26 x 360 x 1000 / (60 x 60)

= 2600 J

Heat dissipated by bulbs per second

= 15 x 40

= 600 J

Heat dissipated by fans per second

200 J

Heat dissipated by air coming in

= 200 x 10 x 1000 / (60 x 60)

=555.55 J

Heat gain by walls

= 5000 x 1000 / (60 x 60)

= 1388.88 J

Total heat gain per second

= 2600 + 600+200+555.55

= 3955.55 J

Capacity of air-conditioner required

= 3955.55 J/s

= 3.9 kJ/s

= 3.9kW

= 4 kW

7 0
3 years ago
A cylindrical aluminum core is surrounded by a titanium sleeve, and both are attached at each end to a rigid end-plate. Set up t
NeX [460]

Complete Question

The complete question is shown on the first uploaded image

Answer:

a) The elongation of the composite bar is given as δ = 0.072 in

b) The axial stress induced in each material is = 5485.7 psi

Explanation:

The explanation to the answer above is shown on the second uploaded image

3 0
3 years ago
Nitrogen (N2) contained in a piston–cylinder arrangement, initially at 10 bar and 405 K, undergoes an expansion to a final tempe
yKpoI14uk [10]

Answer:28.21 kJ/kg

Explanation:

Given

P_1=10\ bar

T_1=405\ K

T_2=300\ K

Process PV^{1.3}=constant

Work done for Polytropic process

W=\dfrac{P_1V_1-P_2V_2}{n-1}

where n=Polytropic index

W=\dfrac{R(T_1-T_2)}{n-1}

W=\dfrac{0.296(405-300)}{1.3-1}\quad [R_{N_2}=\frac{8.314}{28}]

W=103.6\ kJ\kg

Now Calculating change in Internal energy

\Delta U=c_v(T_2-T_1)

\Delta U=0.718\times (300-405)

\Delta U=-75.39\ kJ/kg

Now applying First law concept

\Delta U=Q-W

Q=W+\Delta U

Q=103.6-75.392

Q=28.21\ kJ/kg

6 0
4 years ago
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