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One-fifth of the batteries produced by an upstart factory are defective and one -quarter of all batteries produced are rejected by the quality control technician. If one-tenth of the non-defective batteries are rejected by mistake and if all the batteries not rejected are sold, then what percent of the batteries sold by the factory are defective?
When the negative pole of one battery is connected to the positive pole of the other battery, the batteries are said to be connected in-
Given below are four jumbled sentences. Out of the given options pick the one that gives their correct order. A. You’ve probably noticed, with great disappointment, that the battery doesn’t seem to last as long as it did when it was brand new. B. Partial charging is just fine for lithium-ion batteries and can actually have some positive benefits for cell longevity. C. Smartphone users are forever in search of longer battery life, but unfortunately, battery capacity inevitably declines with age. D. However, one thing you can do to prolong the life of your battery and handset is partial charging.
Shweta has connected a cell with a bulb. The bulb didn't glow. What could be the reasons? A. Bulb was connected by the positive terminal from both ends. B. One end of the bulb was connected with a positive terminal and another end was connected with a negative terminal.  C. Bulb was connected by the negative terminal from both ends D. Bulb was fuse.
সিরিজে সংযুক্ত একটি এ্যামিটার এবং একটি অজানা রোধ দুটি একই রকম 1.5 V ব্যাটারীর দুই প্রান্তে সংযুক্ত আছে। যখন ব্যাটারী দুটি সিরিজে সংযুক্ত থাকে তখন এ্যামিটার। amp রিডিং প্রদর্শন করে। আবার ব্যাটারী দুটি সমান্তরালে সংযুক্ত করলে 0.6 amp রিডিং প্রদর্শন করে। ব্যাটারীর আভ্যন্তরিন রোধ কত ? (An ammeter and an unknown resistance are connected in series across two identical batteries of each 1.5 V. The ammeter shows current I amp and 0.6 amp when the batteries are connected in series and parallel, respectively. What is the internal resistance of the battery?)
An electric circuit is set up in such a way that the positive terminal of a battery V is connected to a bulb B1 which is connected to a resistor R which is connected to bulb B2. B2 is finally connected to the negative terminal of the battery. Both the bulbs are glowing. If the value of R is increased, then
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.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: All cells are chargers Statement II: All batteries are cells Conclusion I: Some chargers are batteries Conclusion II: All batteries are chargers
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be atvariance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statementsStatement I:
All cells are chargers
Statement II:
All batteries are cells
Conclusion I:
Some chargers are batteries
Conclusion II:
All batteries are chargers
Below are given two sets, Set - I which gives modalities of operant conditioning and Set - II which provides the types of reinforcement, the types of responses (responses made or withheld) and the presence or absence of cue. Match the two sets and indicate your answer by choosing from the code : Set - I (Modalities of operant conditioning procedures) Set – II           (Conditions and contexts) (a) Reward training (i) Positive reinforcement, response made, with cue present (b) Escape training (ii) Positive reinforcement, response withheld with cue absent (c) Discriminated omission training   (iii) Positive reinforcement, response made with cue absent (d) Active avoidance   (iv) Negative reinforcement, response made with training (e) Punishment training (v) Positive reinforcement, response withheld with cue present   (vi) Negative reinforcement, response withheld with cue absent