Get Advice on Live Video Call
Earn $ Cash $ with
consultations on Bissoy App

Which of the following statements about the commonly used automobile battery are true?<br>1. It is usually a lead-acid battery.<br>2. It has six cells with a potential of 2V each.<br>3. Its cells work as galvanic cells while discharging power.<br>4. It cells work as electrolytic cells while recharging.<br>Select the correct answer:

Correct Answer: 1, 2, 3 and 4

If the first two statements are true, the third statement is :
I. Battery X lasts longer than Battery Y.
II. Battery Y doesn't last as long as Battery Z.
III. Battery Z lasts longer than Battery X.

Consider the following statements.
1. Galvanic cell converts chemical energy into electrical energy.
2. In a galvanic cell, the electron flow from anode to cathode through the external circuit.
3. Galvanic cell converts metal from its elemental state to the combined state.
Which of the statement(s) given above is/are correct?

Consider the following statements:
A person who is not a member of Parliament
1. Cannot be appointed as a Minister.
2. Can be appointed as a Minister for six months.
3. Can be appointed as a Minister for six months term renewable by another six months.
4. Can be appointed as a Minister beyond six months on his election to either House of Parliament.
Which of the statements given above is/are correct?

A three-phase full converter charges a battery from a three-phase supply of 230 V. The battery emf is 200 V and the internal resistance of the battery is 0.5 Ω. Find the value of the continuous current which is flowing through the battery if its terminal voltage is 210 V

Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A worker is hired for six days.He is paid Tk.2 more for each day of work than he was paid for the preceding day of work.How much was he paid for the day of work?

Which of the following factors adversely affects the capacity of the leadacid battery ?

Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer :

I. The farmers have decided against selling their kharif crops to the Government agencies.
II. The Government has reduced the procurement price of kharif crops starting from last month to the next six months.

Which of the following statements are correct regarding common differences between plant and animal cells?
1. Plant cells have cellulose cell wall, while animal cells lack it.
2. Plant cells lack plasma membrane, while animal cells have it.
3. Mature plant cell have a large vacuole, while animal cells have numerous small vacuoles.

If the concentration of Mg2+ is changed from 1.0 M to 0.1 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 2 and 3?

If the concentration of Ti2+ is changed from 1.0 M to 0.1 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 2 and 3?